TASK 1 Use must not or do/does not have to to complete these sentences
1. I have already finished all my work, so I ………………………………… study tonight.
2. I …………………………… forget to take my notebook with me.
3. Bats can navigate in the darkness. They …………………… see in order to avoid obstacles.
4. David! You ………………………… play with sharp knives.
5. We …………………………………… go to the cinema if you don’t want to watch the film.
6. If you want to be a good manager, you ……………………………. be rude with a customer.
7. If you are afraid of dogs, you ………………………………………... show any signs of fear.
8. You ……………………………. tell anyone my secrets.
9. A person ………………………… become rich and famous in order to live a successful life.
10. I ………………………………. do the dishes in the morning. My brother always does them.
1 dont have to
2 mustn't
3 don't have to
4 mustn't
5 don't have to
6 mustn't
7 mustn't
8 mustn't
9 doesn't have to
10 don't have to
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