Ex.19. Вставьте mustn't or needn't.
1.You_____play with matches. It's dangerous. 2. You_____talk loudly. The baby is sleeping. 3. I_____go to the bank. I've got some money. 4. We_____stay out late. We have to get up early tomorrow. 5. You _____feed the dog. I'll do it. 6. I _____forget to buy some milk. There isn't any left. 7. You_____talk during the exam. 8. You_____phone Julia. She's coming here later. 9. You _____take your umbrella. It's stopped raining. 10. You_____park here. There's a “No Parking” sign. 11. You_____come with me. I can go alone. 12. You_____lose the key. I haven't got another. 13. You _____tell Sonia. It's a secret. 14. You_____buy a paper. You can read mine. 15. You_____go by taxi. I can give you a lift.

1. m      9.m2. n      10. m3. n      11.n4. m     12.n5. n      13. m6. n      14. m7. n       15. n8. m