Вставьте модальные глаголы may или can 1. ... I come in? 2. Let me look at your exercises. I ... be able to help you.

1.May I come in? 2. Let me look at your exercises. I may be able to help you. 3. I can not swim, because until this year the doctor did not allow me to be more than two minutes in the water. But this year he says I may stay in for fifteen minutes if I like, so I am going to learn to swim. 4. Libraries are quite free, and anyone who likes can get books there. 5. I can come and see you tomorrow if I have time. 6. Take your raincoat with you: it may rain today. 7. Do you think you can do that? 8. I can finish the work tomorrow if no one bothers me anymore. 9. May we come and see you next Sunday at three o\'clock in the afternoon?