-> I knew that he had been told of the meeting.

-> I have never been treated with such kindness.

-> Is English taught here?

-> Were you given some exercises by your teacher?

-> Has the window of the laboratory been changed?

-> Will the children be brought home by the buses?

I knew that they had told him of the meeting.
-> I knew that he had been told of the meeting.

Nobody has ever treated me with such kindness.
-> I have never been treated with such kindness.

Do they teach English here?
-> Is English taught here?

Did your teacher give you some exercises?
-> Were you given some exercises by your teacher?

Have they changed the window of the laboratory?
-> Has the window of the laboratory been changed?

Will the buses bring the children home?
-> Will the children be brought home by the buses?

1. -> I knew that he had been told of the meeting.
2. -> I have never been treated with such kindness.
3. -> Is English taught here?
4. -> Were you given some exercises by your teacher?
5. -> Has the window of the laboratory been changed?
6. -> Will the children be brought home by the buses