буду очень благодарен.
Вставьте модальные глаголы can, may, must или need.
1. Peter ... return the book to the library. We all want to read it. 2. Why ... not you understand it? It is so easy. 3. ... we do the exercise at once? — Yes, you ... do it at once. 4. ... you pronounce this sound? 5. You ... not have bought this meat: we have everything for dinner. 6.1... not go out today: it is too cold. 7. ... I take your pen? — Yes, please. 8. We ... not carry the bookcase upstairs: it is too heavy. 9. We ... not carry the bookcase upstairs ourselves: the workers will come and do it. 10. When ... you come to see us? — I ... come only on Sunday. 11. Shall I write a letter to him? — No, you ... not, it is not necessary. 12. ... you cut something without a knife? 13. Everything is clear and you ... not go into details now. 14. He ... not drink alcohol when he drives. 15. Don't worry! I ... change a light bulb. 16. By the end of the week I ... have finished writing my book. 17. She ... not call the doctor again unless she feels worse.