2/ Advanced Past Tenses – Past Perfect, Past Continuous, Past Perfect Continuous

A. LÝ THUYẾT

B. VÍ DỤ SONG NGỮ

• She had been working at the company for ten years before she decided to quit. (Cô ấy đã làm việc ở công ty được mười năm trước khi quyết định nghỉ việc.)
• When I arrived, they had already started the meeting. (Khi tôi đến, họ đã bắt đầu cuộc họp.)
• He was studying abroad when the pandemic broke out. (Anh ấy đang đi du học khi đại dịch bùng phát.)
• By the time we reached the station, the train had already left. (Khi chúng tôi đến ga, tàu đã rời đi.)
• I didn't realize how much I had changed until I met my old friends. (Tôi không nhận ra mình đã thay đổi nhiều đến thế cho đến khi gặp lại những người bạn cũ.)
• They were discussing the plan when the manager walked in. (Họ đang thảo luận về kế hoạch thì người quản lý bước vào.)
• The project had taken nearly three years to complete. (Dự án đã mất gần ba năm để hoàn thành.)
• While I was reading, my phone kept buzzing with notifications. (Trong khi tôi đang đọc, điện thoại của tôi liên tục rung lên vì thông báo.)
• She had never seen snow before she moved to Canada. (Cô ấy chưa bao giờ thấy tuyết trước khi chuyển đến Canada.)
• We were having dinner when the lights went out. (Chúng tôi đang ăn tối thì đèn tắt.)
• The students had finished their exams by the end of May. (Các sinh viên đã hoàn thành kỳ thi vào cuối tháng 5.)
• He worked as a journalist before becoming a novelist. (Anh ấy làm báo trước khi trở thành tiểu thuyết gia.)
• I was trying to call you when my phone died. (Tôi đang cố gọi cho anh thì điện thoại hết pin.)
• The company had been facing financial difficulties for months before it closed down. (Công ty đã gặp khó khăn về tài chính trong nhiều tháng trước khi đóng cửa.)
• She didn't know that he had already heard the news. (Cô ấy không biết rằng anh ấy đã nghe tin.)
• When I looked at her, she was smiling quietly to herself. (Khi tôi nhìn cô ấy, cô ấy đang mỉm cười lặng lẽ với chính mình.)
• It had been raining all night, so the roads were flooded in the morning. (Trời mưa suốt đêm nên sáng ra đường đã bị ngập.)
• They hadn't realized how serious the problem was until it was too late. (Họ không nhận ra vấn đề nghiêm trọng đến mức nào cho đến khi quá muộn.)
• I wasn't listening when the teacher asked me a question. (Tôi không nghe rõ khi giáo viên hỏi tôi một câu hỏi.)
• He hadn't expected to win the competition, but he did. (Anh ấy không ngờ mình sẽ thắng cuộc thi, nhưng anh ấy đã làm được.)
• The team had trained hard before the championship began. (Đội đã tập luyện chăm chỉ trước khi giải vô địch bắt đầu.)
• While the others were celebrating, she sat silently in the corner. (Trong khi những người khác đang ăn mừng, cô ấy ngồi im lặng ở góc phòng.)
• I had always admired his dedication to his work. (Tôi luôn ngưỡng mộ sự tận tâm của anh ấy với công việc.)
• We spent the whole day exploring the ancient ruins. (Chúng tôi dành cả ngày để khám phá những tàn tích cổ xưa.)
• The professor had been researching the topic for years before publishing his findings. (Vị giáo sư đã nghiên cứu chủ đề này trong nhiều năm trước khi công bố những phát hiện của mình.)
• She was preparing dinner when the doorbell rang. (Cô ấy đang chuẩn bị bữa tối thì chuông cửa reo.)
• They hadn't met each other until that conference in 2018. (Họ đã không gặp nhau cho đến hội nghị năm 2018 đó.)
• I had thought about quitting several times before I finally resigned. (Tôi đã nghĩ đến việc nghỉ việc nhiều lần trước khi cuối cùng tôi từ chức.)
• He wasn't aware that his comment had offended anyone. (Anh ấy không biết rằng bình luận của mình đã xúc phạm đến bất kỳ ai.)
• The company was expanding rapidly during the 1990s. (Công ty đã mở rộng nhanh chóng trong những năm 1990.)
• We hadn't spoken for years before she called me last week. (Chúng tôi đã không nói chuyện trong nhiều năm cho đến khi cô ấy gọi cho tôi vào tuần trước.)
• He lived in New York before he moved to Tokyo. (Anh ấy sống ở New York trước khi chuyển đến Tokyo.)
• The students had completed their assignments by the deadline. (Các học sinh đã hoàn thành bài tập đúng hạn.)
• I was reading a novel when I fell asleep on the couch. (Tôi đang đọc tiểu thuyết thì ngủ quên trên ghế sofa.)
• She hadn't realized how much she missed home until she returned. (Cô ấy không nhận ra mình nhớ nhà đến nhường nào cho đến khi trở về.)
• They had been working on the project for months before receiving any recognition. (Họ đã làm việc cho dự án này trong nhiều tháng trước khi nhận được bất kỳ sự công nhận nào.)
• When we arrived, they were still cleaning the hall. (Khi chúng tôi đến nơi, họ vẫn đang dọn dẹp hành lang.)
• He had forgotten his wallet at home, so he couldn't pay for lunch. (Anh ấy đã quên ví ở nhà nên không thể trả tiền ăn trưa.)
• The storm was getting worse as we drove through the mountains. (Cơn bão ngày càng dữ dội khi chúng tôi lái xe qua những ngọn núi.)
• She had never thought that such a simple idea could change her life. (Cô ấy chưa bao giờ nghĩ rằng một ý tưởng đơn giản như vậy có thể thay đổi cuộc đời mình.)
• I was walking down the street when I saw an old friend from college. (Tôi đang đi bộ trên phố thì gặp một người bạn cũ thời đại học.)
• He had been waiting for hours before the bus finally came. (Anh ấy đã đợi hàng giờ trước khi xe buýt cuối cùng cũng đến.)
• The company had already announced the merger before the rumors spread. (Công ty đã thông báo về việc sáp nhập trước khi tin đồn lan rộng.)
• While she was cleaning, she found an old photo album. (Trong lúc dọn dẹp, cô ấy tìm thấy một album ảnh cũ.)
• They hadn't believed the story until they saw the evidence themselves. (Họ đã không tin câu chuyện cho đến khi tận mắt chứng kiến ​​bằng chứng.)
• I worked as an assistant before I became a full-time manager. (Tôi từng làm trợ lý trước khi trở thành quản lý toàn thời gian.)
• The team had been losing hope until the coach gave an inspiring speech. (Cả đội đã mất hết hy vọng cho đến khi huấn luyện viên có một bài phát biểu đầy cảm hứng.)
• She hadn't realized he was joking until everyone laughed. (Cô ấy không nhận ra ông ấy đang nói đùa cho đến khi mọi người cười.)
• We had planned to visit Italy, but the trip was canceled due to bad weather. (Chúng tôi đã lên kế hoạch đến thăm Ý, nhưng chuyến đi đã bị hủy do thời tiết xấu.)
• The sun was setting as we reached the top of the mountain. (Mặt trời đang lặn khi chúng tôi lên đến đỉnh núi.)

C. BÀI TẬP THỰC HÀNH

1. SẮP XẾP CHỮ ĐÚNG THỨ TỰ

• 1/    for / ten / been / decided / to / had / she / company / at / before / the / years / She / quit. / working /
  
  

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• 2/    meeting. / the / they / had / I / started / already / When / arrived, /
  
  

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• 3/    He / pandemic / when / studying / the / out. / was / abroad / broke /
  
  

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• 4/    station, / left. / had / reached / By / the / already / train / the / the / we / time /
  
  

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• 5/    much / I / friends. / my / realize / didn't / met / had / I / old / changed / I / how / until /
  
  

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• 6/    discussing / plan / the / when / They / were / in. / manager / the / walked /
  
  

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• 7/    nearly / The / project / to / years / had / taken / complete. / three /
  
  

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• 8/    kept / notifications. / was / my / reading, / with / While / I / phone / buzzing /
  
  

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• 9/    before / never / moved / seen / Canada. / she / had / snow / She / to /
  
  

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• 10/    went / were / out. / having / lights / We / the / when / dinner /
  
  

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• 11/    the / of / by / May. / exams / their / The / end / had / students / finished /
  
  

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• 12/    He / before / becoming / as / a / novelist. / journalist / a / worked /
  
  

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• 13/    I / was / you / phone / to / when / call / trying / died. / my /
  
  

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• 14/    for / it / difficulties / been / closed / had / months / The / before / financial / company / down. / facing /
  
  

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• 15/    already / know / that / heard / the / news. / She / he / had / didn't /
  
  

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• 16/    quietly / to / her, / looked / When / smiling / herself. / was / she / at / I /
  
  

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2. DỊCH SANG TIẾNG VIỆT

• 1/ It had been raining all night, so the roads were flooded in the morning.
  
  

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• 2/ They hadn't realized how serious the problem was until it was too late.
  
  

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• 3/ I wasn't listening when the teacher asked me a question.
  
  

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• 4/ He hadn't expected to win the competition, but he did.
  
  

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• 5/ The team had trained hard before the championship began.
  
  

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• 6/ While the others were celebrating, she sat silently in the corner.
  
  

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• 7/ I had always admired his dedication to his work.
  
  

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• 8/ We spent the whole day exploring the ancient ruins.
  
  

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• 9/ The professor had been researching the topic for years before publishing his findings.
  
  

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• 10/ She was preparing dinner when the doorbell rang.
  
  

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• 11/ They hadn't met each other until that conference in 2018.
  
  

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• 12/ I had thought about quitting several times before I finally resigned.
  
  

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• 13/ He wasn't aware that his comment had offended anyone.
  
  

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• 14/ The company was expanding rapidly during the 1990s.
  
  

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• 15/ We hadn't spoken for years before she called me last week.
  
  

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• 16/ He lived in New York before he moved to Tokyo.
  
  

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3. DỊCH SANG TIẾNG ANH

• 1/ Các học sinh đã hoàn thành bài tập đúng hạn.
  
  

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• 2/ Tôi đang đọc tiểu thuyết thì ngủ quên trên ghế sofa.
  
  

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• 3/ Cô ấy không nhận ra mình nhớ nhà đến nhường nào cho đến khi trở về.
  
  

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• 4/ Họ đã làm việc cho dự án này trong nhiều tháng trước khi nhận được bất kỳ sự công nhận nào.
  
  

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• 5/ Khi chúng tôi đến nơi, họ vẫn đang dọn dẹp hành lang.
  
  

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• 6/ Anh ấy đã quên ví ở nhà nên không thể trả tiền ăn trưa.
  
  

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• 7/ Cơn bão ngày càng dữ dội khi chúng tôi lái xe qua những ngọn núi.
  
  

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• 8/ Cô ấy chưa bao giờ nghĩ rằng một ý tưởng đơn giản như vậy có thể thay đổi cuộc đời mình.
  
  

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• 9/ Tôi đang đi bộ trên phố thì gặp một người bạn cũ thời đại học.
  
  

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• 10/ Anh ấy đã đợi hàng giờ trước khi xe buýt cuối cùng cũng đến.
  
  

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• 11/ Công ty đã thông báo về việc sáp nhập trước khi tin đồn lan rộng.
  
  

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• 12/ Trong lúc dọn dẹp, cô ấy tìm thấy một album ảnh cũ.
  
  

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• 13/ Họ đã không tin câu chuyện cho đến khi tận mắt chứng kiến ​​bằng chứng.
  
  

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• 14/ Tôi từng làm trợ lý trước khi trở thành quản lý toàn thời gian.
  
  

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• 15/ Cả đội đã mất hết hy vọng cho đến khi huấn luyện viên có một bài phát biểu đầy cảm hứng.
  
  

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• 16/ Cô ấy không nhận ra ông ấy đang nói đùa cho đến khi mọi người cười.
  
  

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• 17/ Chúng tôi đã lên kế hoạch đến thăm Ý, nhưng chuyến đi đã bị hủy do thời tiết xấu.
  
  

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• 18/ Mặt trời đang lặn khi chúng tôi lên đến đỉnh núi.
  
  

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D. BÀI TẬP KIỂM TRA

• 1/ When I arrived, they ______ dinner. (Khi tôi đến, họ đang ăn tối.)
  
      a) were having      b) had had      c) have had      d) had      
  
  
• 2/ She ______ in Paris before she moved to London. (Cô ấy đã sống ở Paris trước khi chuyển đến London.)
  
      a) was living      b) had lived      c) has lived      d) lived      
  
  
• 3/ I ______ for hours before he finally called. (Tôi đã đợi hàng giờ trước khi anh ấy cuối cùng gọi điện.)
  
      a) have waited      b) was waiting      c) had waited      d) waited      
  
  
• 4/ They ______ the house when the rain started. (Họ đang sơn nhà thì trời bắt đầu mưa.)
  
      a) had painted      b) were painting      c) have painted      d) painted      
  
  
• 5/ By the time we got to the station, the train ______. (Khi chúng tôi đến ga, tàu đã rời ga.)
  
      a) has left      b) was leaving      c) had left      d) left      
  
  
• 6/ He ______ for ten years before he retired. (Anh ấy đã làm việc mười năm trước khi nghỉ hưu.)
  
      a) worked      b) had worked      c) was working      d) has worked      
  
  
• 7/ She ______ a book when the lights went out. (Cô ấy đang đọc sách thì đèn tắt.)
  
      a) had read      b) was reading      c) read      d) has read      
  
  
• 8/ We ______ for two hours when we finally found the café. (Chúng tôi đi bộ hai tiếng mới tìm thấy quán cà phê.)
  
      a) had walked      b) were walking      c) walked      d) have walked      
  
  
• 9/ I ______ for this opportunity since I graduated. (Tôi đã chờ đợi cơ hội này kể từ khi tốt nghiệp.)
  
      a) was waiting      b) have waited      c) had been waiting      d) waited      
  
  
• 10/ He ______ in the company for five years before becoming manager. (Anh ấy đã làm việc ở công ty năm năm trước khi trở thành quản lý.)
  
      a) has worked      b) was working      c) worked      d) had worked      
  
  
• 11/ They ______ when we knocked on the door. (Họ đang ngủ khi chúng tôi gõ cửa.)
  
      a) have slept      b) were sleeping      c) slept      d) had slept      
  
  
• 12/ She ______ English for three years before she visited London. (Cô ấy đã học tiếng Anh ba năm trước khi đến London.)
  
      a) had studied      b) has studied      c) was studying      d) studied      
  
  
• 13/ I ______ my phone when it suddenly rang. (Tôi đang kiểm tra điện thoại thì đột nhiên nó reo.)
  
      a) had checked      b) check      c) checked      d) was checking      
  
  
• 14/ We ______ dinner before you came. (Chúng ta đã ăn tối trước khi anh đến.)
  
      a) had had      b) had      c) have had      d) were having      
  
  
• 15/ He ______ for an hour when I joined him at the gym. (Anh ấy đã tập thể dục được một tiếng khi tôi đến phòng tập cùng anh ấy.)
  
      a) had been exercising      b) exercised      c) had exercised      d) was exercising      
  
  
• 16/ It ______ heavily all night, so the roads were flooded. (Trời mưa rất to suốt đêm nên đường bị ngập.)
  
      a) rained      b) had been raining      c) had rained      d) was raining      
  
  
• 17/ They ______ TV when I arrived. (Họ đang xem TV khi tôi đến.)
  
      a) were watching      b) had watched      c) had been watching      d) watched      
  
  
• 18/ By the time I reached home, my parents ______ to bed. (Khi tôi về đến nhà, bố mẹ tôi đã đi ngủ.)
  
      a) had gone      b) were going      c) went      d) have gone      
  
  
• 19/ I ______ him for years before we met in person. (Tôi đã quen anh ấy nhiều năm trước khi chúng tôi gặp nhau trực tiếp.)
  
      a) had known      b) was knowing      c) knew      d) have known      
  
  
• 20/ She ______ for the bus when it started raining. (Cô ấy đang đợi xe buýt thì trời bắt đầu mưa.)
  
      a) had waited      b) waited      c) had been waiting      d) was waiting      
  
  
• 21/ We ______ for two hours when the concert began. (Chúng tôi đã xếp hàng hai tiếng đồng hồ khi buổi hòa nhạc bắt đầu.)
  
      a) queued      b) had queued      c) had been queuing      d) were queuing      
  
  
• 22/ He ______ to fix the computer all morning. (Anh ấy đã cố gắng sửa máy tính cả buổi sáng.)
  
      a) has tried      b) tried      c) had been trying      d) was trying      
  
  
• 23/ She ______ much better by the time the doctor arrived. (Cô ấy đã cảm thấy khá hơn nhiều khi bác sĩ đến.)
  
      a) had felt      b) felt      c) had been feeling      d) was feeling      
  
  
• 24/ They ______ breakfast when the guests came in. (Họ đang ăn sáng thì khách đến.)
  
      a) were having      b) had had      c) had      d) have had      
  
  
• 25/ I ______ my wallet at home, so I couldn’t pay. (Tôi đã quên ví ở nhà nên không thể trả tiền.)
  
      a) was forgetting      b) forgot      c) had forgotten      d) forget      
  
  
• 26/ The children ______ for hours before they got tired. (Bọn trẻ đã chơi hàng giờ liền trước khi thấy mệt.)
  
      a) were playing      b) had been playing      c) have played      d) played      
  
  
• 27/ We ______ each other for years before we became friends. (Chúng tôi đã quen nhau nhiều năm trước khi trở thành bạn bè.)
  
      a) had known      b) have known      c) knew      d) were knowing      
  
  
• 28/ The teacher ______ when the bell rang. (Thầy giáo đang nói thì chuông reo.)
  
      a) had spoken      b) spoke      c) had been speaking      d) was speaking      
  
  
• 29/ He ______ for a new job when he got the offer. (Thầy ấy đang tìm việc mới thì nhận được lời mời.)
  
      a) was looking      b) had looked      c) had been looking      d) looked      
  
  
• 30/ They ______ the movie before, so they didn’t watch it again. (Họ đã xem phim đó trước đó rồi nên không xem lại nữa.)
  
      a) have seen      b) had seen      c) saw      d) were seeing      
  
  
• 31/ The sun ______ when we left the beach. (Mặt trời đang lặn khi chúng tôi rời bãi biển.)
  
      a) was setting      b) had set      c) set      d) had been setting      
  
  
• 32/ I ______ him before, but I recognized his voice. (Tôi chưa từng gặp thầy ấy trước đây, nhưng tôi nhận ra giọng thầy ấy.)
  
      a) wasn’t meeting      b) didn’t meet      c) hadn’t met      d) haven’t met      
  
  
• 33/ She ______ since morning when the phone rang. (Cô ấy đã ngủ từ sáng khi điện thoại reo.)
  
      a) had been sleeping      b) had slept      c) was sleeping      d) slept      
  
  
• 34/ By the time we arrived, they ______ already. (Khi chúng tôi đến nơi, họ đã rời đi rồi.)
  
      a) had left      b) leave      c) left      d) were leaving      
  
  
• 35/ He ______ for hours before he finally solved the problem. (Thầy ấy đã làm việc hàng giờ liền trước khi cuối cùng giải quyết được vấn đề.)
  
      a) had been working      b) was working      c) had worked      d) worked      
  
  
• 36/ They ______ when the police arrived. (Họ đang cãi nhau thì cảnh sát đến.)
  
      a) argued      b) had argued      c) were arguing      d) had been arguing      
  
  
• 37/ We ______ for a taxi when it started snowing. (Chúng tôi đang đợi taxi thì trời bắt đầu đổ tuyết.)
  
      a) had waited      b) were waiting      c) waited      d) had been waiting      
  
  
• 38/ I ______ my phone before I went out. (Tôi đã sạc điện thoại trước khi ra ngoài.)
  
      a) was charging      b) had charged      c) charged      d) have charged      
  
  
• 39/ She ______ for a long time before she decided to quit. (Cô ấy đã làm việc được một thời gian dài trước khi quyết định nghỉ việc.)
  
      a) had been working      b) was working      c) had worked      d) worked      
  
  
• 40/ They ______ much fun before the rain spoiled the picnic. (Họ đã rất vui vẻ trước khi cơn mưa làm hỏng buổi dã ngoại.)
  
      a) were having      b) had had      c) have had      d) had      
  
  
• 41/ I ______ for my keys when I realized they were in my bag. (Tôi đang tìm chìa khóa thì nhận ra chúng nằm trong túi.)
  
      a) was looking      b) had looked      c) looked      d) had been looking      
  
  
• 42/ He ______ a lot of weight before he joined the gym. (Anh ấy đã tăng cân rất nhiều trước khi tham gia phòng tập thể dục.)
  
      a) gains      b) had gained      c) gained      d) was gaining      
  
  
• 43/ We ______ in the park when we saw the rainbow. (Chúng tôi đang đi dạo trong công viên thì nhìn thấy cầu vồng.)
  
      a) walked      b) were walking      c) had been walking      d) had walked      
  
  
• 44/ She ______ that movie twice before yesterday. (Cô ấy đã xem bộ phim đó hai lần trước hôm qua.)
  
      a) was seeing      b) had seen      c) has seen      d) saw      
  
  
• 45/ The train ______ when the storm began. (Tàu đang di chuyển khi cơn bão bắt đầu.)
  
      a) had moved      b) moved      c) was moving      d) had been moving      
  
  
• 46/ He ______ to call you but forgot. (Anh ấy định gọi cho bạn nhưng lại quên mất.)
  
      a) intended      b) intends      c) was intending      d) had intended      
  
  
• 47/ We ______ there for long before we were served. (Chúng tôi đã đợi ở đó không lâu trước khi được phục vụ.)
  
      a) weren’t waiting      b) hadn’t been waiting      c) hadn’t waited      d) didn’t wait      
  
  
• 48/ I ______ my coffee when he entered. (Tôi đang uống cà phê thì anh ấy bước vào.)
  
      a) was drinking      b) drank      c) drink      d) had drunk      
  
  
• 49/ They ______ for ten minutes when the bell rang. (Họ đã chơi được mười phút thì chuông reo.)
  
      a) played      b) had played      c) had been playing      d) were playing      
  
  
• 50/ By the time I got home, she ______ already left. (Khi tôi về đến nhà, cô ấy đã đi rồi.)
  
      a) was      b) had      c) had      d) had      
  
  
• 51/ She ______ all day before she finally finished her essay. (Cô ấy đã viết cả ngày trước khi hoàn thành bài luận của mình.)
  
      a) wrote      b) had written      c) was writing      d) had been writing      
  
  
• 52/ By the time he got home, his family ______ dinner. (Khi anh ấy về đến nhà, gia đình đã ăn tối xong.)
  
      a) finished      b) were finishing      c) had finished      d) have finished      
  
  
• 53/ They ______ about moving abroad for months before deciding. (Họ đã bàn bạc về việc chuyển ra nước ngoài hàng tháng trời trước khi quyết định.)
  
      a) were talking      b) talked      c) had talked      d) had been talking      
  
  
• 54/ I ______ to the radio when I heard the news. (Tôi đang nghe radio thì nghe được tin.)
  
      a) was listening      b) have listened      c) had listened      d) listened      
  
  
• 55/ He ______ to call you, but he forgot your number. (Anh ấy muốn gọi cho bạn, nhưng lại quên mất số của bạn.)
  
      a) has wanted      b) wanted      c) had wanted      d) was wanting      
  
  
• 56/ The teacher ______ the test before the students arrived. (Giáo viên đã chuẩn bị bài kiểm tra trước khi học sinh đến.)
  
      a) was preparing      b) prepared      c) has prepared      d) had prepared      
  
  
• 57/ It ______ for three hours when the sun finally came out. (Trời mưa suốt ba tiếng đồng hồ thì cuối cùng mặt trời cũng ló dạng.)
  
      a) was raining      b) had been raining      c) rained      d) had rained      
  
  
• 58/ We ______ for a long time before they opened the gate. (Chúng tôi đã đợi rất lâu trước khi họ mở cổng.)
  
      a) had been waiting      b) waited      c) had waited      d) were waiting      
  
  
• 59/ She ______ the piano when her mother called her for dinner. (Cô ấy đang chơi đàn piano thì mẹ cô ấy gọi cô ấy đi ăn tối.)
  
      a) was playing      b) had played      c) had been playing      d) played      
  
  
• 60/ The company ______ huge losses before it closed down. (Công ty đã chịu tổn thất lớn trước khi đóng cửa.)
  
      a) has suffered      b) was suffering      c) suffered      d) had suffered      
  
  
• 61/ I ______ to contact him for weeks before he replied. (Tôi đã cố gắng liên lạc với anh ấy hàng tuần trước khi anh ấy trả lời.)
  
      a) tried      b) was trying      c) had been trying      d) had tried      
  
  
• 62/ They ______ in the same office for years before they became friends. (Họ đã làm việc cùng văn phòng nhiều năm trước khi trở thành bạn bè.)
  
      a) had been working      b) had worked      c) worked      d) were working      
  
  
• 63/ When the fire alarm went off, everyone ______ out quickly. (Khi chuông báo cháy reo, mọi người vội vã chạy ra ngoài.)
  
      a) ran      b) had been running      c) had run      d) was running      
  
  
• 64/ She ______ so much that her voice became hoarse. (Cô ấy hát nhiều đến mức giọng cô ấy khàn đi.)
  
      a) had sung      b) had been singing      c) sang      d) was singing      
  
  
• 65/ We ______ there long before we realized it was the wrong address. (Chúng tôi chưa ở đó được bao lâu thì nhận ra đó là địa chỉ sai.)
  
      a) didn’t stay      b) hadn’t been staying      c) hadn’t stayed      d) weren’t staying      
  
  
• 66/ The baby ______ when I entered the room. (Em bé khóc khi tôi bước vào phòng.)
  
      a) had cried      b) cried      c) had been crying      d) was crying      
  
  
• 67/ By the time we reached the airport, the plane ______. (Khi chúng tôi đến sân bay, máy bay đã cất cánh.)
  
      a) was leaving      b) had left      c) has left      d) left      
  
  
• 68/ He ______ for a job before the company contacted him. (Anh ấy đã nộp đơn xin việc trước khi công ty liên hệ với anh ấy.)
  
      a) applied      b) was applying      c) had applied      d) had been applying      
  
  
• 69/ We ______ about the trip when the teacher entered the classroom. (Chúng tôi đang nói về chuyến đi thì giáo viên bước vào lớp.)
  
      a) were talking      b) talked      c) had been talking      d) had talked      
  
  
• 70/ She ______ several mistakes before she finally understood the rule. (Cô ấy đã mắc một số lỗi trước khi cuối cùng hiểu được quy tắc.)
  
      a) has made      b) had made      c) was making      d) made      
  
  
• 71/ I ______ that book for weeks, but I still hadn’t finished it. (Tôi đã đọc cuốn sách đó trong nhiều tuần, nhưng tôi vẫn chưa hoàn thành nó.)
  
      a) was reading      b) read      c) had been reading      d) had read      
  
  
• 72/ They ______ for the bus for twenty minutes when it finally arrived. (Họ đã đợi xe buýt được hai mươi phút thì xe cuối cùng cũng đến.)
  
      a) were waiting      b) had waited      c) waited      d) had been waiting      
  
  
• 73/ The students ______ the test when the fire alarm rang. (Các học sinh đang làm bài kiểm tra thì chuông báo cháy reo.)
  
      a) were taking      b) had been taking      c) had taken      d) took      
  
  
• 74/ He ______ a lot of money before he retired. (Anh ấy đã kiếm được rất nhiều tiền trước khi nghỉ hưu.)
  
      a) had earned      b) had been earning      c) earned      d) was earning      
  
  
• 75/ We ______ a meeting when the power went out. (Chúng tôi đang họp thì mất điện.)
  
      a) had had      b) have had      c) were having      d) had      
  
  
• 76/ She ______ her homework before she went to bed. (Cô ấy đã làm xong bài tập về nhà trước khi đi ngủ.)
  
      a) had finished      b) finishes      c) was finishing      d) finished      
  
  
• 77/ It ______ snowing for hours before it finally stopped. (Tuyết rơi liên tục hàng giờ trước khi tạnh hẳn.)
  
      a) had been snowing      b) had snowed      c) snowed      d) was snowing      
  
  
• 78/ I ______ my glasses all day before I realized they were on my head. (Tôi đã lục tìm kính cả ngày mới nhận ra chúng đang ở trên đầu.)
  
      a) had searched      b) had been searching      c) searched      d) was searching      
  
  
• 79/ We ______ when the lights went out. (Chúng tôi đang nhảy thì đèn tắt.)
  
      a) danced      b) were dancing      c) had been dancing      d) had danced      
  
  
• 80/ He ______ English for ten years before moving to Canada. (Anh ấy đã học tiếng Anh mười năm trước khi chuyển đến Canada.)
  
      a) had studied      b) was studying      c) had been studying      d) studied      
  
  
• 81/ They ______ on the project since early morning. (Họ đã làm việc cho dự án từ sáng sớm.)
  
      a) had worked      b) had been working      c) worked      d) were working      
  
  
• 82/ By the time the teacher entered, the students ______. (Khi giáo viên bước vào, các học sinh đang nói chuyện.)
  
      a) had been talking      b) stopped talking      c) had talked      d) were talking      
  
  
• 83/ I ______ my phone, so I couldn’t call you. (Tôi bị mất điện thoại nên không gọi được cho bạn.)
  
      a) have lost      b) lost      c) had lost      d) was losing      
  
  
• 84/ He ______ to the gym before he sprained his ankle. (Anh ấy đã đến phòng tập thể dục trước khi bị bong gân mắt cá chân.)
  
      a) went      b) was going      c) has gone      d) had gone      
  
  
• 85/ She ______ a letter when the postman arrived. (Cô ấy đang viết thư thì người đưa thư đến.)
  
      a) was writing      b) wrote      c) had been writing      d) had written      
  
  
• 86/ We ______ in that restaurant before it became popular. (Chúng tôi đã ăn ở nhà hàng đó trước khi nó trở nên nổi tiếng.)
  
      a) had been eating      b) ate      c) were eating      d) had eaten      
  
  
• 87/ The audience ______ impatiently before the concert began. (Khán giả đã chờ đợi một cách sốt ruột trước khi buổi hòa nhạc bắt đầu.)
  
      a) had been waiting      b) waited      c) was waiting      d) had waited      
  
  
• 88/ They ______ each other for years before they got married. (Họ đã quen nhau nhiều năm trước khi kết hôn.)
  
      a) were knowing      b) had known      c) knew      d) have known      
  
  
• 89/ I ______ for a long time when he finally appeared. (Tôi đã chờ đợi rất lâu cho đến khi anh ấy cuối cùng cũng xuất hiện.)
  
      a) had been waiting      b) waited      c) had waited      d) was waiting      
  
  
• 90/ The manager ______ us to finish the report by Friday. (Người quản lý đã yêu cầu chúng tôi hoàn thành báo cáo trước thứ Sáu.)
  
      a) asked      b) was asking      c) has asked      d) had asked      
  
  
• 91/ The teacher ______ the topic when the bell rang. (Giáo viên đang giải thích chủ đề thì chuông reo.)
  
      a) had been explaining      b) explained      c) had explained      d) was explaining      
  
  
• 92/ She ______ in New York before moving to Los Angeles. (Cô ấy đã sống ở New York trước khi chuyển đến Los Angeles.)
  
      a) had lived      b) had been living      c) was living      d) lived      
  
  
• 93/ The kids ______ in the pool all afternoon before it started raining. (Bọn trẻ đã bơi trong hồ bơi suốt buổi chiều trước khi trời bắt đầu mưa.)
  
      a) had swum      b) swam      c) were swimming      d) had been swimming      
  
  
• 94/ I ______ him yesterday, but he didn’t see me. (Tôi thấy anh ấy hôm qua, nhưng anh ấy không thấy tôi.)
  
      a) was seeing      b) had seen      c) saw      d) have seen      
  
  
• 95/ The workers ______ all week before they finally completed the bridge. (Các công nhân đã làm việc cả tuần trước khi họ hoàn thành cây cầu.)
  
      a) had been working      b) were working      c) worked      d) had worked      
  
  
• 96/ We ______ for over an hour when the announcement was made. (Chúng tôi đã chờ hơn một tiếng đồng hồ thì nghe thấy thông báo.)
  
      a) had been waiting      b) had waited      c) were waiting      d) waited      
  
  
• 97/ The phone ______ while I was in the shower. (Điện thoại reo khi tôi đang tắm.)
  
      a) was ringing      b) had been ringing      c) had rung      d) rang      
  
  
• 98/ They ______ the same mistake until the teacher corrected them. (Họ vẫn mắc lỗi tương tự cho đến khi giáo viên sửa lại.)
  
      a) were making      b) had made      c) had been making      d) made      
  
  
• 99/ She ______ a lot of experience by the time she got promoted. (Cô ấy đã tích lũy được rất nhiều kinh nghiệm khi được thăng chức.)
  
      a) has gained      b) was gaining      c) had gained      d) gained      
  
  
• 100/ We ______ the meeting for over an hour when the power went out. (Chúng tôi đã họp hơn một tiếng đồng hồ thì mất điện.)
  
      a) were holding      b) held      c) had held      d) had been holding