1. who is asked many questions at the lesson?
what are the students asked on the lessons?
where are the students asked many questions?
2. who is often visited by friends?
by whom is she often visited?
how often is she visited by her friends?
3. who will be shown a new film tomorrow?
what students will be shown a new film tomorrow?
what will the students of our group be shown?
when will the students of our group be shown a new film?
4. what was answered yesterday?
whose letter was answered yesterday?
when was your letter answered?