Bài 13: Complete the sentences with mustn't or don't/doesn't have to
1. I don't want anyone to know about our plan. You mustn't tell anyone.
2. Richard doesn't have to wear a suit to work but he usually does.
3. I can stay in bed tomorrow morning because I ……………………….. go to work.
4. Whatever you do, you .................................. touch that switch.It's very dangerous.
5. There's a lift in the building so we ……………………………….. climb the stairs
6. You ........................................... forget what I told you.It's vry important.
7. Sue ………………………..... get up early, but she usually does.
8. Don't make so much noise. We ………………………………... wake the children.
9. I …………………………….. eat too much.I'm supposed to be on a diet
10. You ……………………………... be good player to enjoy a game of tennis.
3: don't have to
4: mustn't
5: don't have to
6: mustn't
7: doesn't have to
8: mustn't
9: mustn't
10: don't have to