Question

Complete the sentences with can, could, must, have to, may
1. i am afraid i .... come to the party
2. who is that man with Ann? i'm not sure. it .... be her brother.
3. you .... tell anyone.
4. I can stay in bed tomorrow morning because i ... go to the work.
5. you look tired. Yes, I .... sleep last night.

Answer 1

have to
may
can
mustn't
couldn't

Answer 2

1. can't
2. may
3. can't
4. mustn't
5. couldn't