42.I lent you a book which was written by one my friends.
43.Do you know a restaurant where We can have a good meal
44.I don’t remember the day when I left school
45.This is the man ,whom I met in Paris.
46.I wanted the painting which You bought
47.This is the chair ,which My parents gave to me.
48.She’s the woman, who telephoned the police.
49.He’s the person, who wanted to buy your house.
50.We threw out the computer, which never worked well.