C) Use MUST/MUSTN`T / HAVE TO or (NOT) HAVE TO: 1. I can stay in bed tomorrow morning because I ……………………………. work. 2.

1. I can stay in bed tomorrow morning because I don\'t have to work. 2. Whatever you do, you mustn\'t touch that switch. It\'s very dangerous. 3. You mustn\'t forget what I told you. It\'s very important. 4. We don\'t have to leave yet. We\'ve got plenty of time. 5. Ann was feeling ill last night. She had to leave the party early. 6. I had to go to the bank yesterday to get some money. 7. The windows are very dirty. I must clean them. 8. The windows aren\'t dirty. You don\'t have to clean them. 9. We arrived home very late last night. We had to wait half an hour for a taxi. 10. These cakes are very nice. You must have one. 11. We don\'t have to take an umbrella. It\'s not going to rain.