1.I (do) … …….….. my homework while Nick (watch)…… …. TV last night.  2.Unless they (pass) …….. their examinations, they would join the army.  3.What …… ….(you /do) … …. at 8 p.m yesterday?  4. If we had the key now, we (solve) … …. the problem of traffic jam. 5. Stop (argue) …… ……..…… and start (work)…… …..……..  6. Don’t try (persuade) …… …………. me. Nothing can make me (change) ……… my mind 7. If we recycle more, we (help) … ……… the Earth. 8. If you (be) … ….. ….. the president, what you (do) … ………………. to help the environment? 9. My father (work) …… …….…. in this factory for many years. 10. After she (finish) ………. breakfast, she left the house. 11. Look at those clouds – I think it (rain)…… …….…….. 12. This time next week, I (lie)…… …… on the beach on Phu Quoc Island

Để giải các câu hỏi trên, chúng ta cần sử dụng các cấu trúc và thì trong tiếng Anh như sau:

1. I did my homework while Nick was watching TV last night.
2. Unless they pass their examinations, they will join the army.
3. What did you do at 8 p.m yesterday?
4. If we had the key now, we would solve the problem of traffic jam.
5. Stop arguing and start working.
6. Don’t try to persuade me. Nothing can make me change my mind.
7. If we recycle more, we will help the Earth.
8. If you were the president, what would you do to help the environment?
9. My father has worked in this factory for many years.
10. After she finished breakfast, she left the house.
11. Look at those clouds – I think it will rain.
12. This time next week, I will be lying on the beach on Phu Quoc Island.

6. Don’t try to persuade me. Nothing can make me change my mind.

5. Stop arguing and start working.

4. If we had the key now, we would solve the problem of traffic jam.

3. What were you doing at 8 p.m yesterday?