1. in: trong

=> in the world: trong thế giới

2. learn (v): học

3. for 

=> for four years: trong 4 năm

4. different (adj): (+from): khác với

5. it

6. a (vì phía sau có "lot of")

7. best: tuyệt nhất 

8. every (phía sau có "day")

=> every day: hàng ngày

Câu IV

1. My sister has learnt/learned English 5 years ago.

2. My cousin used to visit me when he lived in Hanoi

3. My friend asked me if I went to school on Sunday

4. The supermarket was built near the airport last year.

Câu V

1. I have live in this city for 15 years.

2. The telephone was invented many years ago.

3. Our children like watching/ like to watch cartoons on TV

4. Although Internet have lots of benefit, it's not only costly and time-consuming but also dangerous

1. in

2. learn

3.for

4.different

5.it

6.a

7.best

8.every

IV.

1. My sister has learned English for 5 years.

2. My cousin used to visited me when he lived in Hanoi.

3.my friend asked me "do you go to school on sunday?"

4.The supermarket near the airport was built by them.

V.

1/ I live in this city for 15 years.

2/The telephone was invented many years ago

3/Our children like to watch cartoons on Tv

4/Although Internet have lots of benefit but also dangerous if you are not costly time-consuming.

Chúc bn học tốt nha:33 ( tớ lớp 6 nhưng học mấy cái này rồi)