№1
1. is
2. has
3. can swim
4. can't speak
5. don't go
6. Does he understand English?
№2
Личные: I, you, he, she, it, we, they
Притяжательные: my, your, his, her, its, our, their
Объектные: me, you, him, her, it, us, them
№3
1. What book shall I buy for you?
2. When shall we go to the cinema?
3. May I put on your coat?
4. What did you do on the beach?
5. Can her husband drive a car?