=>
2. The movie which we are talking about is very interesting.
3. I saw several houses which were quite unsuitable.
4. Her many friends, among whom I like to be considered, gave her encouragement.
5. We are moving to Manchester which is in the north-west.
6. My friend whom I think of every night gave me a lot of advice.
7. The girl whom I introduced you to is John's sister.
8. Mr.John, whom we sent to the letter, hasn't given us his reply.

VI/
1. were studying
2. boils
3. entered/were singing
4. went/had had
5. have done
6. is snowing
7. have known/moved/has lived/came
8. is watching/watches
9. Did she post
10. had left 
11. lived/ is staying
12. were you doing/was watching
13. lost/has been
14. gets/will you show

15. listened/have played

VII/
1. traditional
2. marks
3. Valentine's day
4. roast
5. exchange
6. polite
7. popular
8. moon cakes