1. You must listen to your teachers.

⇒ Listen to your teachers!

2. You mustn’t be noisy.

⇒ Do not be noisy!

3. You mustn’t cheat.

⇒ Do not cheat!

4. You must sit at your desk.

⇒Sit at your desk!

5. You mustn't be late.

⇒Don't be late!

6. You must write tests.

⇒ Write the tests!

7. You mustn’t bully your classmates.

⇒Do not bully your classmates!

8. You must pay attention.

⇒ Pay attention!

9. He should have a job.

⇒ Have a job!

10. We mustn't stop now.

⇒ Do not stop!

11. You must go to bed.

⇒Go to bed!

12, You should get up early.

⇒Get up early!

13. You mustn’t stand here.

⇒ Do not stand here!

14. She can have a drink.

⇒ Have a drink!

15. They must clean the carpet.

⇒Clean the carpet!

16. We needn’t wait for him.

⇒ Don't wait for him!