1. His plan is to keep the affair secret.
2. It is dangerous to lean out of the window.
3. You had better say nothing.
4. Open the window!
5. He made me move my car.
6. You are too young to understand.
7. No smoking.
8. He found that parking was difficult.
9. After swimming I felt cold.
10. Do not touch these wires.
11. Collecting stamp is her hobby.
12. Please help me!
13. I found it difficult to park.
14. There is a lot to be done.
