fill in the blanks with mustn’t or don’t /doesn’t have to.
1.They…………work on Saturday.
2.Visitors…………feed the animal.
3.Tim………………wear unifrom at school.
4.You……………..touch that switch.It’s very dangerous.
5.Don’t make so much noise.We………………wake the baby.
6.There’s a lift in the building,so I………….climb the stairs.
7.Staff…………………smoke when serving customers.
8.Sally is extremely rich.she………………work.
1. don’t
2.mustn’t
3.don’t
4.mustn’t
5.mustn’t
6.don’t
7.doesn’t
8.doesn’t
1 don’t have to
2 don’t have to
3 mustn’t
4 don’t have to
5 mustn’t
6 mustn’t
7 mustn’t
8 doesn’t have to