Task II. Complete the sentences with modal verbs may, must, or can.1. Peter … return the book to the library. We all want to read it.
2. We … not carry the bookcase upstairs: it is too heavy.
3. … we do the exercise at once? – Yes, you … do it at once.
4. When … you come to see us? – I … come only on Sunday.
5. By the end of the week I … have finished writing m book.
6. … you cut something without a knife?
7. He … not drink alcohol when he drives.
8. Don’t worry! I … change a light bulb.
9. Let me look at your exercises. I … be able to help you.
10. I … 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 … stay in for fifteen
minutes if I like, so I am going to learn to swim.