WHO / WHICH / WHOSE / THAT

1.- This is the boy who had an accident.
2.-Yesterday I saw a car which was really old.
3.-Mandy is the girl who I met on friday.
4.-I haven't seen Frank, whose brother is five, for a long time now.
5.-The robber stole the car whose tha lady parked in front of the supermarket.
6.-This is the manwhose house is on fire.
7.-Can I talk to the girl who is sitting on the bench?
8.-The book which you gave me is great.
9.-She likes hamburgers which are hot
10.-Bill Clinton, who was president of the USA, has only one daughter.