I. Вставьте модальные глаголы can, may, must или need.

1. I ... not go out today: it is too cold. 2. ... I take your pen? — Yes, please. 3. We ... not
carry the bookcase upstairs: it is too heavy. 4. We ... not carry the bookcase upstairs
ourselves: the workers will come and do it. 5. When ... you come to see us? — I ... come
only on Sunday. 6. Shall I write a letter to him? — No, you ... not, it is not necessary. 7.
... you cut something without a knife? 8. Peter ... return the book to the library. We all
want to read it. 9. Why ... not you understand it? it is so easy. 10. ... we do the exercise
at once? Yes, you … do it at once. 11. ... you pronounce this sound? 12. You ... not have
bought this meat – we have everything for dinner.