TENSES:
Exercise 1. Write the correct form of tense of the words in brackets. (Viết dạng thì đúng của từ trong ngoặc)
1. When I ……arrived.. (arrive) at this house, he …was….still ……sleeping…….. (sleep).
2. The lights ……………….. (go) out when we ……………….. (have) dinner.
3. As we……………….. (cross) the street, we ……………….. (see) an accident.
4. While my father …. (read) a newspaper, I….. (learn) my lesson and my sister ……….. (do) her homework.
5. The children ……………….. (play) football when their mother ……………….. (come) back home.
6. When I ….. (come) home, I …………….. (be) very tired because I ………….. (work) all day yesterday.
7. He ……………….. (sit) in a café when I ……………….. (see) him.
8. They ……………….. (go) home after they ……………….. (finish) their work.
9. She said that she ……………….. (already, see) Dr. Brown
10. When we ……………….. (come) to the stadium, the matches ……………….. (already, begin).
11. They told me they ……………….. (not /eat) such kind of food before.
12. He ……………….. (ask) why we ……………….. (come) so early.
13. After they……………….. (go), I ……………….. (sit) down and ……………….. (rest).
14. Before she ……………….. (watch) TV, she ……………….. (do) her homework.
15. It was the first time I ……………….. (ever, see) such a beautiful girl.
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3 câu trả lời 171
1. When I arrived (arrive) at this house, he was still sleeping (sleep).
Giải thích:
- Hành động "arrived" xảy ra tại 1 thời điểm trong quá khứ → Past simple
- Hành động "was sleeping" đang diễn ra vào thời điểm đó → Past continuous
2. The lights went (go) out when we were having (have) dinner.
Giải thích:
- "Went out" là hành động ngắn xảy ra chen ngang → Past simple
- "Were having dinner" là hành động đang diễn ra → Past continuous
3. As we were crossing (cross) the street, we saw (see) an accident.
Giải thích:
- "Were crossing" là hành động đang diễn ra → Past continuous
- "Saw" là hành động ngắn chen vào → Past simple
4. While my father was reading (read) a newspaper, I was learning (learn) my lesson and my sister was doing (do) her homework.
Giải thích: Các hành động song song đang diễn ra → tất cả dùng Past continuous
5. The children were playing (play) football when their mother came (come) back home.
Giải thích:
- Hành động đang diễn ra: "were playing" → Past continuous
- Hành động chen vào: "came" → Past simple
6. When I came (come) home, I was (be) very tired because I had worked (work) all day yesterday.
Giải thích:
- "Came" và "was" là các hành động quá khứ → Past simple
- "Had worked" là hành động xảy ra trước đó → Past perfect
7. He was sitting (sit) in a café when I saw (see) him.
Giải thích:
- "Was sitting" → hành động đang diễn ra
- "Saw" → hành động chen ngang
→ Kết hợp Past continuous + Past simple
8. They went (go) home after they had finished (finish) their work.
Giải thích:
- Hành động hoàn thành trước: "had finished" → Past perfect
- Hành động sau đó: "went" → Past simple
9. She said that she had already seen (already, see) Dr. Brown.
Giải thích: Câu gián tiếp trong quá khứ, hành động "seen" xảy ra trước → Past perfect
10. When we came (come) to the stadium, the matches had already begun (already, begin).
Giải thích:
- Hành động đến sân: "came" → Past simple
- Hành động xảy ra trước đó: "had begun" → Past perfect
11. They told me they had not eaten (not/eat) such kind of food before.
Giải thích:
- "Told me" là quá khứ
- "Had not eaten" xảy ra trước lời kể → Past perfect
12. He asked (ask) why we had come (come) so early.
Giải thích:
- "Asked" là quá khứ
- "Had come" là hành động xảy ra trước → Past perfect
13. After they had gone (go), I sat (sit) down and rested (rest).
Giải thích:
- "Had gone" xảy ra trước → Past perfect
- "Sat" và "rested" xảy ra sau → Past simple
14. Before she watched (watch) TV, she had done (do) her homework.
Giải thích:
- "Had done" xảy ra trước → Past perfect
- "Watched" xảy ra sau → Past simple
15. It was the first time I had ever seen (ever, see) such a beautiful girl.
Giải thích: Với cấu trúc "It was the first time + S + had + V3" → dùng Past perfect
When I arrived (arrive) at this house, he was still sleeping (sleep).
The lights went (go) out when we were having (have) dinner.
As we were crossing (cross) the street, we saw (see) an accident.
While my father was reading (read) a newspaper, I was learning (learn) my lesson and my sister was doing (do) her homework.
The children were playing (play) football when their mother came (come) back home.
When I came (come) home, I was (be) very tired because I had been working (work) all day yesterday.
He was sitting (sit) in a café when I saw (see) him.
They went (go) home after they had finished (finish) their work.
She said that she had already seen (already, see) Dr. Brown.
When we came (come) to the stadium, the matches had already begun (already, begin).
They told me they had not eaten (not /eat) such kind of food before.
He asked (ask) why we had come (come) so early.
After they had gone (go), I sat (sit) down and rested (rest).
Before she watched (watch) TV, she had done (do) her homework.
It was the first time I had ever seen (ever, see) such a beautiful girl.
Explanation: "arrived" is Past Simple, indicating a completed action. "was still sleeping" is Past Continuous, indicating an ongoing action interrupted or taking place at the same time as the first action.
2. The lights went out when we were having dinner.
Explanation: "went out" is Past Simple, a sudden event. "were having dinner" is Past Continuous, an action ongoing at the time of the sudden event.
3. As we were crossing the street, we saw an accident.
Explanation: "were crossing" is Past Continuous, an action in progress. "saw" is Past Simple, a sudden event that occurred during the ongoing action.
4. While my father was reading a newspaper, I was learning my lesson and my sister was doing her homework.
Explanation: All actions are simultaneous and ongoing in the past, thus using Past Continuous.
5. The children were playing football when their mother came back home.
Explanation: "were playing" is Past Continuous, an ongoing action. "came back home" is Past Simple, a completed action that interrupted the ongoing one.
6. When I came home, I was very tired because I had worked all day yesterday.
Explanation: "came home" is Past Simple. "was very tired" is Past Simple. "had worked" is Past Perfect, indicating an action completed before another past action (coming home).
7. He was sitting in a café when I saw him.
Explanation: "was sitting" is Past Continuous, an ongoing action. "saw" is Past Simple, a sudden action that occurred during the ongoing action.
8. They went home after they had finished their work.
Explanation: "went home" is Past Simple. "had finished" is Past Perfect, indicating an action completed before another past action (going home).
9. She said that she had already seen Dr. Brown.
Explanation: "had already seen" is Past Perfect, indicating an action completed before the reporting verb "said."
10. When we came to the stadium, the matches had already begun.
Explanation: "came" is Past Simple. "had already begun" is Past Perfect, indicating an action completed before another past action (coming to the stadium).
11. They told me they had not eaten such kind of food before.
Explanation: "had not eaten" is Past Perfect, indicating an action completed before the reporting verb "told."
12. He asked why we had come so early.
Explanation: "asked" is Past Simple. "had come" is Past Perfect, indicating an action completed before the action of asking.
13. After they had gone, I sat down and rested.
Explanation: "had gone" is Past Perfect, indicating an action completed before the subsequent actions. "sat down" and "rested" are Past Simple.
14. Before she watched TV, she had done her homework.
Explanation: "watched TV" is Past Simple. "had done" is Past Perfect, indicating an action completed before another past action (watching TV).
15. It was the first time I had ever seen such a beautiful girl.
Explanation: "was" is Past Simple. "had ever seen" is Past Perfect, used to describe an experience up to a certain point in the past.
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