Dùng từ gợi ý để hoàn thành câu:

Van / has / lot / homework / she / going / math / school / tomorrow

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.