Complete the sentences with must (not) or (do not) have to (in the correct form). Sometimes it’s possible to use either; sometimes only have to is possible:
1. I don’t want anyone to know. You____ tell annyone.
2. I___ work late tomorrow. We are very busy at the office.
3. Caroline may _____ go away next week.
4. Don’t make so much noise. We ____ wake the baby.
5. The food was free, so we ____ pay.
6. I think you ____ pay to park here. I’ll just go and read that notice.
7. Daniel ____ go to the bank. He hasn’t any money.
8. You _____ wash those glasses. They’re clean.
9. You _____ wear your best clothes. You’ll get them dirty.
10. I _____ put the heating on. I feel really cold.
1. mustn’t
2. will have to
3. have to
4. mustn’t
5. don’t have to
6. must
7. must
8. don’t have to
9. mustn’t
10. mustn’t