Join each pair of sentences using a 'preposition + whom/which'.

3. My english teacher for whom I had grewat respeact is mr tam.

4. He gave me a lot of advice, most of which are very useful.

5. The man from whom I borrowed the money is a good friend of mine.

6. The school has been given 50 computers, half of which are brand now.

7. Lan's party, to which we all invited, is next sunday evening.

8. Mrs jason, to whom we complained, apologized for the mistake.

9. I have heard her on the violin and piano, both of which she plays extremely well.

10. The film "The Lost World" about which I have heard good reports is hsowing next week.

11. The have changed the date on which the furniture is to be delivered.

12. A number of my friends will be at the party, some of whom you have met before.

13. Pasteurization was named after whom was discovered by the french chemist louis pastuer.

14. The college is home to 40 students from southest asia. Most of whom are studying computer science.

15. There are a number of safety producers of whom you should be aware of all.