`1`. We have lived here for 2 years.

`2`. They lived in Whashington in 1960.

`3`. Lan leaved Hanoi last month and has worked in Ho Chi Minh City since them.

`4`. Mr Nam has taught English since 2000.

`5`. We bought this car 2 years ago.

`6`. How long have you learned English?

`7`. I haven't seen him since we said goodbye.

`8`. Yesterday I visited my grandarents.

`9`. I have learned English for 10 years.

`10`. Lan and Nga were close friends since last year.

`11`. What did you do yesterday?

`12`. I have read the novel written by Jack London several times.

`13`. She was born in 1980.

`14`. Mr Nam has taught English in this school since he graduated from university.

`15`. Last month I was in the hospital.

`16`. I have had a computer since my nineteenth birthday.

`17`. The last time I went to Ho Chi Minh City was in 2012.

`18`. We moved here in 1998. We were been here for a long time now.

`19`. She has came to China four times. She loves this country. 

`20`. It was so hot that I went swimming with my friends yesterday.

@Monji

Xin ctlhn+camon+5sao

4.Mr. Nam has taught English since 2000.

5.We bought this car 2 years ago.

6.How long have you learnt English ?

7.I haven't seen him since we say good bye.

8.Yesterday I visited my parents.

9.I have learnt English for 10 years.

10.Lan and Nga have been close friends since last year.

11.What did you do yesterday?

12.I have read the novel written by Jack London several times.

13.She was born in 1980.

14.Mr. Nam has taught English in this school since he graduated from university in 2000.

15.Last month I was in the hospital.

16.I have had a computer since my nineteenth birthday.

17.The last time I went to Ho Chi Minh city was in 2012.

18.We moved here in 1998. We have been here for a long time now.

19.She has come to China four times. She loves this country.

20.It was so hot that I went swimming with my friends yesterday.