Question

Поставьте must или mustn’t. 1.You look pale. I think you … see the doctor. 2.It’s very slippery outside. You … run there. 3.You … throw litter on the pavement. 4.Children … look neat and clean at school. 5.You … make noise in the library. 6.You … brush your teeth before going to bed. 7.You … fasten your seatbelt in a car. 8.Children … watch TV a lot. 9.You … light a fire in the forest. 10.You … be friendly to other people.

Answer 1

1. must
2. mustn't
3. mustn't
4. must
5. mustn't
6. must
7. must
8. mustn't
9. mustn't
10.must

Answer 2

1. You look pale. I think you must see the doctor. 2. It's very slippery outside. You mustn't run there. 3. You mustn't throw litter on the pavement. 4. Children must look neat and clean at school. 5. You mustn't make noise in the library. 6. You must brush your teeth before going to bed. 7. You must fasten your seatbelt in a car. 8. Children mustn't watch TV a lot. 9. You mustn't light a fire in the forest. 10. You must be friendly to other people.