chuyển đổi câu chủ động sang câu bị động:
1. Peter broke this bottle
2. They are learning English in the room
3. Nothing can change my mind
4. No one had told me about it
5. I buy 2 newspapers and 1 magazine everyday
6. My students will bring the children home
7. We should keep the room tidy
8. She gave us more information
9. The chief engineer was instructing all the workers of the plan