1. Could he have said it in public? I don't believe it.
2. He stopped smoking on his doctor's advice.
3. His speech was spoken about a lot after that incident.
4. I haven't heard about him since yesterday.
5. I've an appointment. I'm seeing my doctor tomorrow.
6. If it looks like rain we'll stay at home.
7. Jenny has already been waiting here for two hours.
8. Too much money is spent for defence.
9. Nick skates better than I do.
10. Suppose he wrote to you, would you answer?
11. The milk has just been spilt by Jack.
12. These things do not belong to my parents now.
13. They were waiting for a taxi when I arrived.
14. This book is far more interesting than that one.
15. Visit us next spring, you will not recognize the place.
16. We saw Angela in the gallery last Friday.
17. We are going away for a few days.
18. We'd prefer to wait here now.
19. Where is Bill? - He is reading up for his examination.
20. You need not hurry. There is plenty of time.