Вставьте mustn't or needn't. 1. with matches. it's dangerous. 2. loudly. the baby is sleeping. 3. to the bank. i've got some money. 4. out late. we have to get up early tomorrow. 5. you the dog. i'll do it. 6. i to buy some milk. there isn't any left. 7. during the exam. 8. julia. she's coming here later. 9. you your umbrella. it's stopped raining. 10. here. there's a “no parking” sign. 11. with me. i can go alone. 12. the key. i haven't got another. 13. you sonia. it's a secret. 14. a paper. you can read mine. 15. by taxi. i can give you a lift.
2. mustn't
3. needn't
4. mustn't
5. needn't
6. mustn't
7. mustn't
8. needn't
9. needn't
10. mustn't
11. needn't
12. mustn't
13. mustn't
14. needn't
15. needn't
Mustn't используем, когда что-то под запретом и этого нельзя делать. Needn't используем, когда что-то можно делать по собственному усмотрению и в этом нет нужды.