1. English is spoken in almost every corner of the world nowadays (Bị động HTĐ: am/is/are + p.p, people được lược bỏ trong câu BĐ)
2. It's high time she was told to stop behaving like a child (Bị động QKĐ: was/were + p.p)
3. - A lot of moon cakes have sent to us by my mother
- We have sent a lot of moon cakes by my mother
4. - An interesting book was given to me by my teacher
- I was given an interesting book by my teacher
5. The exercises in this book is had to finish by Ha before 9 pm
6. This room may be used by the principal this year (Bị động với modal verb: modal verb + be + p.p)
7. The wall must be cleaned before it is painted (you được lược bỏ trong câu BĐ)
8. Your bill should be paid before you leave the hotel
9. This button must not be touched while the experiment is in progress
10. Anything can't be done unless more information is given to us
