Dưới đây là các câu đã chuyển về dạng bị động:

6. The dinner is being prepared by her mother in the kitchen.
7. Our teeth should be cleaned twice a day.
8. The English grammar has been explained by our teachers.
9. The accident in this city was caused by some drunk drivers.
10. Tom's parents will be visited by him next month.

Hy vọng điều này hữu ích!