2. Choose the correct modal verb : can , may , must or need.
1. Shall I write a letter to him ? --- No, you ….. not, it is not necessary.
2. ….. you cut something without a knife ?
3. Everything is clear and you ….. not go into details now.
4. He ….. not drink alcohol when he drives.
5. Don’t worry! I …… change a light bulb.
6. By the end of the week I …… have finished writing my book.
7. She ….. not call the doctor again unless she feels worse.
8. You ….. park your car only in your own space in the back of building.
9. You …. not let this cup fall: it … break.
10. ….. I help you with your coat