1. Wake up!
2. Read this article.
3. Help me, please.
4. Give me a pen, please.
5. Don't smoke here.
6. Don't run.
7. Don't forget to call him.
8. Don't cry.
9. Open your books.
10. Come here.
11. Sit down, please.
12. Let's begin.
13. Let's go home.
14. Don't close the windows.
15. Show me the documents.
16. Let him go there alone.
17. Drink the coffee.
18. Let's go to the cinema.
19. Tell me the truth.
20. Don't throw garbage on the street.