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3. Her book which became a best seller was published last year. 

4. This is the bank from which we borrowed the money.

5. I told you about a person who is at the door. 

6. I lent you a book which was written by one my friends. 

7. Do you know a restaurant where we can have a good meal? 

8. I don't remember the day when I left school. 

9. This is the man whom I met in Paris. 

10. I wanted the painting which you bought. 

11. This is the chair which my parents gave to me. 

12. She's the woman who telephoned the police. 

13. He's the person who wanted to buy your house. 

14. We threw out the computer which never worked well. 

15. Are you the man who won the first prize? 

16. The man who was driving the car was badly injured. 

17. The children who live in the next street broke the window. 

18. That's the woman whom I was telling you about. 

19. Romeo and Juliet, whose parents hated each other, were lovers.