8. I know the young man whose mother writes detective stories.
9. Please, tell us about the flm which you saw last.
10. The letter which I received two days ago is full of interesting news.
11. The man who we talked to last night is an architect.
12. The woman who I was sitting behind was wearing a green hat.
13. He works in a factory which makes bicycle.
14. Is that the girl whose son won the derby last week?
