5. My bike has been repaired (by my father).
6. Things are always fixed (by him).
7a. Stories are often told to him (by his mother).
7b. He is often told stories (by his mother).
8a. A letter was written to me (by her).
8b. I was written a letter (by her).
9. She has been helped by you.
10. The bike had been fixed before father (by John).