Answers and Explanations

B2. Rephrase the following sentences using the words in brackets
2.First they washed the car and then they waxed it. (alter)

Answer: First they washed the car and, afterwards, they altered its appearance by waxing it.
Explanation: Using "alter" emphasizes the change brought about by waxing the car.
Dịch: Đầu tiên họ rửa xe, sau đó họ làm thay đổi vẻ ngoài của xe bằng cách đánh bóng nó.
3.Lisa made a sandwich and then sat on the sofa to relax. (before)

Answer: Lisa made a sandwich before she sat on the sofa to relax.
Explanation: "Before" correctly links the sequence of events.
Dịch: Lisa làm một chiếc bánh mì trước khi cô ngồi trên ghế sofa để thư giãn.
4.We packed our suitcases and then left for the airport. (as soon as)

Answer: We packed our suitcases as soon as we left for the airport.
Explanation: This shows immediate sequence.
Dịch: Chúng tôi đóng gói vali ngay khi rời đi đến sân bay.
5.Judy was walking down the street when she saw an accident. (as)

Answer: Judy was walking down the street as she saw an accident.
Explanation: "As" shows two actions happening simultaneously.
Dịch: Judy đang đi bộ xuống phố khi cô nhìn thấy một vụ tai nạn.

C. Choose the correct answers
1.When the children ______________________ home, it was obvious that they had been playing in mud.

Answer: b. arrived
Explanation: The past simple "arrived" matches the context of a completed action.
Dịch: Khi lũ trẻ về đến nhà, rõ ràng là chúng đã chơi trong bùn.
2.Michael _______ in the queue to buy a ticket for the train when he heard a strange noise.

Answer: b. was waiting
Explanation: The past continuous "was waiting" shows the action in progress when something happened.
Dịch: Michael đang xếp hàng mua vé tàu khi anh nghe thấy một tiếng động lạ.
3.In my youth, I _______ the world and often slept under the stars.

Answer: a. travelled
Explanation: The past simple "travelled" fits for a habitual action in the past.
Dịch: Khi còn trẻ, tôi đã đi khắp thế giới và thường ngủ dưới những vì sao.
4.The thieves _____ house for 2 years before they were finally caught.

Answer: a. had been breaking into
Explanation: The past perfect continuous "had been breaking into" emphasizes the ongoing action.
Dịch: Những tên trộm đã đột nhập vào nhà trong 2 năm trước khi bị bắt.
5.I _____ my studies by 1990.

Answer: c. had completed
Explanation: The past perfect "had completed" indicates the action finished before a specific time in the past.
Dịch: Tôi đã hoàn thành việc học vào năm 1990.

D. Sentence Transformation
1.When he was younger, he went to the gym 4 times a week. (Used)

Answer: When he was younger, he used to go to the gym 4 times a week.
Dịch: Khi còn trẻ, anh ấy thường đến phòng gym 4 lần một tuần.
2.I hadn’t tasted Chinese food before. (First)

Answer: It was the first time I had tasted Chinese food.
Dịch: Đó là lần đầu tiên tôi nếm thử món ăn Trung Quốc.
3.(Missing question)
4.I worked at a restaurant in those days. (Was)

Answer: In those days, I was working at a restaurant.
Dịch: Trong những ngày đó, tôi làm việc tại một nhà hàng.
5.After walking a mile, they realized that someone was missing. (Had)

Answer: They had walked a mile when they realized that someone was missing.
Dịch: Họ đã đi được một dặm khi nhận ra rằng có ai đó bị mất tích.
6.(Missing question)
7.When Mark was a student, he was in the habit of forgetting his books. (Always)

Answer: Mark was always forgetting his books when he was a student.
Dịch: Khi còn là sinh viên, Mark luôn quên sách của mình.
Jake made a speech and then we left the ceremony.

Answer: As soon as Jake had made a speech, we left the ceremony.
Dịch: Ngay khi Jake kết thúc bài phát biểu, chúng tôi rời buổi lễ.