Chuyển sang câu bị động:
1. Did your mother cook the meal? --> Was the meal cooked by my mother?
2. They don't take the book. --> the book isn't taken by them.
3. They teach English in every primary school.--> English is taught every primary school.
4. In the countryside, farmers drink tea everyday.--> In the contryside, tea is drank everyday.
5. I gave the boy an apple---> the boy was given an apple by me.