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2. He has to do the housework. 3. You must not buy Apple products. 4. Does she have to stay at home every night? 5. My sister has to wear a brace on her teeth. 6. Does Michael have to get up early tomorrow? 7. We don't agree with it, but we may have to respect it. 8. You don't have to pick me up at the station. I can take a taxi. 9. He eats a lot at meal times, so he doesn't eat in between times. 10. We won't make a final decision till next week, so time is on our side. III. Fill in each gap with don't have to or mustn't. 1. You don't have to come if you don't want to. 2. We don't have to rush there's plenty of time. 3. You mustn't be careless about your passwords. 4. You mustn't carry a weapon into an airport or airplane. 5. You mustn't use an electric device in the bathtub. 6. I don't have to be at the meeting but I think I'll go anyway. 7. You mustn't play with those wires; they're dangerous. 8. In football, you mustn't touch the ball with your hands. 9. You don’t have to pay for your tickets now, but you can if you want. 10.You mustn’t wear formal clothes when you are not working. IV.Unscramble the sentences: 1.I'm really pleased that you are feeling much better 2.We are so confident about the quality of our products 3.We can’t overweigh ourselves because we fly high 4.I couldn’t eat another mouthful; I’m full