Bài 1: Choose the correct answer (mustn't or needn't).

1. Mary___________ go to bed early because tomorrow is her day off.

2. You___________ smoke on the bus. It's forbidden.

3. You ___________ do it now; you can finish it later.

4. Students_____________use their mobile phones during the test.

5. You____________buy any beef. There is plenty of it in the fridge.

6. You____________bring an umbrella. I can lend you one.

7. It's a secret. You____________tell anybody.

8. You____________do the washing up as we have a dishwasher.

9. You really ____________be late again.

10. You______drink at all if you plan to drive.

Unit 6 - (HS)