1. C which
2. A who
3. B which
4. B which
5. D whose
6. B whose
7. A who
8. B which
9. C whose
10. A which


1. He worked for a woman who used to be an artist
2. We broke a car which belonged to my uncle
3. Ba dropped a cup which was new
4. Nam loves books which have happy endings
5. The woman who is from India, works in a hospital 
6. My sister who has 4 sons, lives in Japan
7. The phone which is on the table, belongs to An
8. The TV which got broken, was my grandfather's
9. The radio which was stolen, was bought 35 years ago
10. I know the woman who lives upstairs

Ex1:

1. C 
2. A 
3. B
4. B 
5. D 
6. B 
7. A
8. B 
9. C 
10. A 
Ex2:
1. He worked for a woman who used to be an artist
2. We broke a car which belonged to my uncle
3. Ba dropped a cup which was new
4. Nam loves books which have happy endings
5. The woman who is from India, works in a hospital 
6. My sister who has 4 sons, lives in Japan
7. The phone which is on the table, belongs to An
8. The TV which got broken, was my grandfather's
9. The radio which was stolen, was bought 35 years ago
10. I know the woman who lives upstairs

Good luck !