6. Выберите правильное местоимение: 1) I have Oxford and Cambridge

6. Изберите правильное местоимение:
1) I have Oxford and Cambridge dictionaries, ... one shall I give you? a) what b) which

2)... knows what it is?
a) who b) which

3) ... of you knows what it is?
a) who b) which

4) ... knocked at the door.
a) some b) somebody

5)... of you must go and open the door.
a) some b) somebody