16. used

17. was having

18. playing

19. has collected

20. to spend 

B. up

C

Câu 3 là D chứ c nhỉ c:? 
Trích trong từ điển Cambridge có ví dụ nè: https://dictionary.cambridge.org/dictionary/english/traffic-jam 

III.

1. B 

2. A

3. D

4. C

5. C

6. A

7. B

8. D

9. D

10. C

pay

I. 

1. The rooms have to be tidied.

2. A new car was bought. 

3. Their homework are being done.

4. English can be spoken.

5. Her own clothes should be washed.

ủa c có dùng hdap247 á c:? 

1. You shouldn't spend a lot of time watching TV

2.  Why don't we go to the time spendre to welcome the New Year? (sai đề)

Living in the city is more convenient than living in the country.