48.c
1. The person who gave me the most encouragement at school was my French teacher
2. I felt quite let down by the film
3. We were so bored that we left in the interval
4. Peter told Mark that he wanted the report to be written up immediately
5. I would rather you didn't go there now
6. I may forget to mention that the deadline is Tuesday
7. It has been ten years since I last heard this song
8. Please carry on with your work
9. I should be told about these changes earlier
10. He plays this piece of music more beautifully than anyone else

46.c
1. I think you'd better apologize to her
2. My friends are unlikely to receive my letter yet.
3. I was under the impression that there was something worrying him
4. I've never seen anyone play much more skillfully before
5. What was the reason for his changing of mind?
6. When are we supposed to take up the books we ordered last week?
7. He was brought up traditionally, wasn't he?
8. I hardly go out these days
9. I was being told what to do when I was small
10. When I saw her last week, she didn't look happy at all