1. They drink a cup of milk before going to bed.
A cup of milk is drunk by them before going to bed
2. Will we need calculators in the exam?
Will calculators be needed in the exam?
3. The drama club is performing a play.
A play is being performed by the drama club
4. Someone had already solved this problem.
This problem had already been solved
5. We heard him tell this story.
He was heard to tell this story by us
6. They chose me to represent the union at the meeting.
I was chosen to represent the union at the meeting.
REFER
1. A cup of milk was drunk by them before going to bed.
2. Will calculators be needed in the exam?
3. A play is being performed by the drama club.
4. This problem had already been solved by someone.
5. This story was heard by us.
6. The union at the meeting was chosen by me to represent them.