=>
I/
1. has taught/graduared
2. has written
3. Did you watch
4. have read
5. has stolen
6. went
7. hasn't smoked 
8. Have you received 
9. left/haven't heard
10. joined/was

II/
1. This is the first time I have read such a romntic story.
2. We have cooked for the party for four hours.
3. When did they buy the house?
4. We haven't decorated this room for years.
5. It's three months since she went to the hairdresser.
6. It's the first time I have met such a famous person.
7. They haven't visited me for five years.
8. The last time I went to Bristol was 3 years ago.
9. Laurence last saw his sister when she left for Japan.
10. The last time Lucy wore that dress was at Barbara's wedding.
11. My sister began to study French 2 years ago.
12. It's the first time I have seen such a mess in my life.
13. It's 4 years since Robert and Catherine got married.
14. How long have Catherine and Henry got engaged?
15. It's the first time I have seeen a dirtier-looking dog.
16. It's hours and hours since Mary rang me.
17. Tom has been ill for three days.
18. She has left university for 2 years.
19. This is the first time I have tasted such a delicious cake in my life.
20. When did you see Mary?

1. has taugh/ is graduating

2 wrote

3 did you watch 

4 have read

6 was

7 hasn't smoken

8 have you received 

9 left/ haven't heard

10 has joined/ was

2

2started cooking for the party for four hours

3đi they buy the house

7 they haven't visited for five years

11 study French 2 years ago

14 is it since Catherina and Henry got engaged

17 há became ill for 3 dáy

20 đi you sê Mảy