1. Young generation wear jeans because they are fashionable and comfortable.
-> Jeans are worn by young generation because they are fashionable and comfortable.
- Câu bị động hiện tại đơn: S + is/am/are + Vpp
2. " Be careful with what you eat": said his father.
-> His father asked him to be careful what he ate.
- ask + SO + to V : yêu cầu ai đó làm gì ....