3. The 1992 Olympics, which were hold in Barcelona, is in the North-east Spain.

4.  Graham took us to his office, which was filled with books.

5. Michelangelo, whom we saw on TV, is one of Italy's greatest artists.

6. Tom is the only student to win the cholarships to study abroad.

7. I don't like the people who often arrive late.

8. The students whom we met at the party are from Australia.

9. Most of the people who live in Australia speak German.

10. What is the name of the writer whose book won a prize last week?

11. I don't like the man whom you are talking to.

12. I can't find the book which my friend asked me to land to him. 

13. He always makes noise, which makes us very annoyed.

14. Is there someone who knows her address?

15. Mary was staying with her friend whom has a big house in Scotland.

16. They have three children, most of whom are teachers.

17. It is the most interesting novel I have ever read.

18. Many people like buying things even they don't need them, Which will turn them into shopholics.

19. There were only a few people who were interested in his speech.

20. Mrs White, whose course we are taking, is an excellent teacher.