Đáp án là: were.

Đáp án: were (was)

were not

has gone

has worked

has taken

has played

16. They ( not be ) ______didn't be____ at home yesterday.

17. He (go) ____has gone______ to Ha Long Bay for 2 weeks.

18. Mary  ( work) ______has worked____ here since last night.

19. Nam  ( take ) ____has taken______ the bus to school since last night.

20. He ( play ) ____has played______ volleyball for 10 years .

weren't

has gone

has worked

has taken

has played

6. goes

7. work 

8. aren't

9. goes

10. goes

6.goes

7.work

8.aren't

9.went

10.went

goes

work

aren't

went

went

takes

is reading

1. Put the verbs into correct tense forms

1. It takes me 20 minutes to go to school.

2. Where is Nam?  - He is reading books in his room.

1. goes

2. won't go 

3. are

4. doesn't enjoy 

5. will see

1. He often goes to school on foot.

dịch: Anh ấy thường đi bộ đến trường.

=> chia theo thì HT đơn dấu hiệu often

2. Mai and Nam won't go to the movie

theatre tommorow evening

dịch: Mai và Nam sẽ không đi xem phim ở rạp phim

vào buổi tối ngày mai.

=> chia theo thì tương lai dấu hiệu tommorow

3. There are going to be big problems in many parts of the world.

dịch: Sẽ có những vấn đề lớn ở nhiều nơi trên thế giới.

=> to be mà ở đây là problems số nhiều nên sử dụng are

4. He plays volleyball but he doesn't enjoy it.

dịch: Anh ấy chơi bóng chuyền nhưng anh ấy không thích nó.

=> he hở đây là số ít mà anh ấy không thích chơ bóng chuyền

, vậy sử dụng doesn't enjoy.

5. You will see the doctor next week.

dịch: Bạn sẽ gặp bác sĩ vào tuần tới.

=> đây là tương lai vậy sử dụng will dấu hiệu next week

Put the verbs in correct forrms using conditional sentence type 2:
- If the sun (be).was..... shinning now, we would go to the beach.
- If you (paint).....painted........ the walls white, the room would be much brighter.
- If he knew that it was dangerous he (not come)......wouldnot come.................
- I (buy) ........would buy....... shares in that company if I had saome money.