1.She hasn't phoned me for a week.

-> The last time she phoned me was a week ago.

2. I haven't seen him for 2 years.

-> I last saw him 2 years ago

3. Nam hasn't talked to Mai for five days

-> The last time Nam talked to Mai was five days ago

4.They haven't written to each oder for a year

-> The last time they wrote to each order was a year ago

5. It's a week since he last visited me.

-> The last time he visited me was a week ago

6. It's an hour since he last used his computer

-> The last time he used his computer was an hour ago

7. It's ages since I last did his homework.

-> The last time I did his homework was ages ago

8. The Brown began to study VietNamese your months ago.

-> The Brown have studied Vietnamese for four months

9. I started to use the conputer 20 minutes ago.

-> I have used the computer for 20 minutes

10. The children began playing soccer at 4p.m

-> The children started playing soccer at 4p.m ( hoặc thành hiện tại hoàn thành:

->The children have played since 4p.m

11. Ba began learning French in 2004.

-> Ba has learnt French since 2004

12. This is my first visit to Japan

-> This is the first time I have visited to Japan

-> I haven't visited to Japan before

13. He has never eaten Chinese food before

-> This is the first time he has eaten Chinese food.

14, 15 ( tương tự 13 nhé )

16.This is my first game of water-polo.I have ever play.

-> I have never play water-polo before

17. This is the first time he has made such a big mistake ( giống 16)

18. The last time jame played video games was 30 minutes ago

-> Jame has played video games for 30 minutes 

19.How long is it since he found a new job?

-> When did he find a new job?

20. It's a month since I saw Chris

-> I have seen Chris for a month. 

Chúc em học tốt !

1. The last time she phoned me was a week ago.

2. I last saw him 2 years ago

3. The last time Nam talked to Mai was five days ago

4. The last time they wrote to each order was a year ago

5. The last time he visited me was a week ago

6. The last time he used his computer was an hour ago

7. The last time I did his homework was ages ago

8.The Brown have studied Vietnamese for four months

9.I have used the computer for 20 minutes

10.The children have played since 4p.m

11. Ba has learnt French since 2004

12. I haven't visited to Japan before

13. This is the first time he has eaten Chinese food.

14.That girl has never been punished before

15.This is my first time talking to a foreigner

16. I have never play water-polo before

17. He has never made such a big mistake

18. Jame has played video games for 30 minutes 

19.When did he find a new job?

20. I have seen Chris for a month.