Chuyển các câu sau sang câu bị động
1. Science and technology have completely changed human life ->
2. The chief engineer was instructing all the workers of the plan ->
3. Somebody has taken some of my books away ->
4. After class, one of the students always erasers the chalk board ->
5. They have to repair the engine of the car ->
1. Science and technology have completely changed human life
-> The human life have completely been changed with Science and Technology.
2. The chief engineer was instructing all the workers of the plan
-> All the workers of the plan were being instructed by the chief engineer.
3. Somebody has taken some of my books away
-> Some of my books have been taken away.
4. After class, one of the students always erasers the chalk board
-> After class, the chalk board is always erasered by one of the students.
5. They have to repair the engine of the car
-> The engine of the car has to be repaired.
