Choose the best option : 1. I help you if you want. (must/can/may)
2. You finish half of the work yesterday. (could/may/can)
3. I sleep well yesterday (can't/mustn't/couldn't)
4. Pupils be late for classes. (can/may/must/mustn't)
5. We show these photos to her. (must/mustn't/can/can't)
6. Granny is sleeping. You make a nolse. (must/can't/mustn't)
7. People take care of nature. (can/may/must/should).
8. People live on the Mocn. (must/may/can/can't)
9. Children go to bed late. (can/shouldn't/may)
10. Max take my umbrella. (must/can/may)
1. can
2.could
3. couldn't
4. mustn't
6. mustn't
7. must
8. can't
9. shouldn't
10.may