Fill in the gaps must, mustn't, have to, don't have to / doesn't have to and the verbs:
visit, touch, go, buy, learn, be polite, walk.

1.l ... to my guests.
2. You. ... her books. She'll be very angry.
3. You. ... me a new bicycle. My old one is very good.
4. You ... your granny. She'll be very happy to see you.
5. I .... to the shop and buy a warm jacket.
6. Mother ... the dog. We always do it.
7. You ... this song by heart. Your teacher won't ask you to sing it.

спасибо

1. I must be polite to my guests. 2. You.mustn't touch her books. She'll be very angry. 3. You.don't have to buy me a new bicycle. My old one is very good.4. You must visit your granny. She'll be very happy to see you.5. I must go to the shop and buy a warm jacket. 6. Mother doesn't have to walk the dog. We always do it. 7. You  don't have to learn this song by heart. Your teacher won't ask you to sing it.