1. If you are not quiet, you will not understand the lesson.
2. If you practice speaking English every day, you will improve your English.
3. She told him not to phone her at night.
4. My friend told me she/he was unhappy because she/he didn't have any friends.
5. I wish she didn't talk so much in class.
6. I wish my son weren't so lazy.
7. The floor is cleaned everyday by Loan.
8. The present has been opened excitedly by the little girl.
9. Mr. Brown hasn't painted the living room for two years.
10. It was so cold that she had to wear a coat.
11. If you aren't hurried, you will miss the train.
12. Mr. Thanh asked Hoa how she went to school that day.
13. The test was so hard that we got bad grades.
14. The test has to be finished on time.
15. I wish I had enough time to help you.
16. I wish I weren't so short.
17. I am looking forward to the coming festival.
18. Carol has no difficulty in making friends.
19. My father hasn't seen my uncle for nearly 20 years.
20. The boys felt interested in the journey to the village.