Question

Must, mustn't, have to, don't have to, has to, need, needn't, can or can't. 8. You ... wear a sweater. It's warm outside. 9. You ... be late. It's an important meeting. 10. He can go out but he ... be back by 10:00​

Answer 1

8) You don't need wear a sweater. Its warm outside

9)You mustn't be late. It's an important meeting.

10)He can go out but he have to be back by 10:00

Answer 2

8. You don't have to wear a sweater. It's warm outside.
9. You mustn't be late. It's an important meeting.
10. He can go out, but he has to be back by 10:00.