Bị động với Modal Verbs (động từ khuyết thiếu)

Exercise 1 : Chuyển các câu sau thành câu bị động:

1. She can wash this dress.  

2. You should open the milk about 3 hours before you use it.

3. Students may keep books for 1 week.

4. People shouldn't throw away their tickets after going to the cinema.

5. We have to park the car in the carpark.

6. Visitors must leave umbrellas in the hall.

7. The teachers should take those books back to the library.

8. We can not change the title which everyone have named in the meeting.

9. You must not touch this woman; she's too sick.

10. They have to open this street.

11. We have to pull down this skyscraper.

12. Visitors must report the accident to the police.

13. You must dry-clean this T-shirt.

14. Laville must pay the bill for them.

15. Mina have to leave him here.

16. I can buy this house.

17. They must clean their room.

18. We can not shut the door.

19. Natalya will call you as soon as she arrives.

20. Sephera can bring it back this evening.

21. My students must pass their exam.

22. Capheny ought to leave a message on the table for me.

23. I can pay my bill next month.  

24. She should clean the windows.

25. Arthur can phone you later when he comes home.