I.
1, which
2, why
3, when
4, in when
5, at which
6, which
7, when
8, why
9, where
10, where
II.
1. He worked for a woman who used to be an artist.
2. They called a doctor who lived nearby.
3. I wrote an email to my sister who lives in Italy.
4. Linh liked the waiter who was very friendly.
5. We broke a car which belonged to my uncle.
6. Ba dropped a cup which was new.
7. Nam loves books which have happy endings.
8. I live in a city where is in the north of Vietnam.
9. The man who is in the class is wearing a blue hat.
10. The woman who works in a hospital is from India.
11. My sister has four sons that lives in Japan.
12. The man was wearing a red shirt was rude.
13. The phone which is on the table belongs to An.
14. The TV which got broken was my grandfather’s.
15. The radio which was stolen was bought 35 years ago.
16. The girl who gave Binh his phone is his daughter.
17. This is the laptop which my mother has just bought.
18. That’s the man whose car is a Ferrari.
19. I know the woman who lives upstairs.
20. It’s the dog that I always talk to him at night.
- Answered by Meett1605