Fill in the blanks with mustn't or don't / doesn't have to: They........work on Sunday. Visitors..........feed the animal.
Fill in the blanks with mustn't or don't / doesn't have to:
1. They--work on Sunday.
2. Visitors--..feed the animal.
3. Tim--...wear uniform at school.
4. Don't make so much noise. We--.wake the baby.
5. There is a lift in the building, so I--.climb the stairs.
6. You--..touch that switch. It's very dangerous.
7. Staff-...smoke when serving customers.
8. Sally is extremly rich. She--..work.
9. I don't want anybody to know our plan. You=tell anymore.
10. You--.be a good player to enjoy a game of tennis.