`III.`

`1.` C

`2.` A ( It's+ Adj+ for Sb+ to V-inf )

`3.` B ( dùng and để nối hai danh từ cùng loại với nhau )

`4.` D ( one of the+ Nsn: một trong những )

`5.` C ( because: bởi vì )

`6.` C

`7.` A ( at the college: tại các trường cao đẳng )

`8.` B

`9.` C ( Other+ Nđđsn = Others: những người khác )

`10.` B ( in English: bằng tiếng Anh )

`IV.` 

`5.` I used to go fishing when I was a child. ( used to+ V-inf: thường làm một việc gì trong quá khứ )

`6.` The ball was kicked into the goal yesterday. ( bị động của thì quá khứ đơn: S+ was/were+ P.P )

`7.` I have learnt English for three years. (  S + began / started + V-ing + thời gian+ ago → S+ HTHT+ for + khoảng thời gian )

`8.` Susan asked Hanh if many tourists visited Viet Nam every year ( câu tường thuật: S+ asked+O+ if/whether+ S+ V-lùi thì )

`9.` The boy who is playing the piano is Nam ( dùng mệnh đề quan hệ )

III.

1. C

2. A

3. B

4. D

5. C

6. C

7. A

8. B

9. C

10. B

IV.

5. I used to go fishing when I was a child

6. The ball was kicked into the goal yesterday.

7. I have learnt English for three years.

8. Susan asked Hanh if many tourists visited Viet Nam every year.

CHO MK XIN HAY NHẤT Ạ!