1. I've worked in this school for 5 years.
2. My father had his car repaired yesterday.
3. The time machine will be shown to the public when it is finished.
4. Tam used to type faster than now.
5. It's important to keep the environment clean.
6. Hung's favorite is collect stamps.
7. He asked me If I knew the name of the person who first had climbed Mount Everest.
8. She hasn't eaten this kind of food since January.
9. I enjoy walking in the rain.
10. Is this the first time you played a computer game ?
11. He was delighted that his aunt sent him a letter.
12. People recycle old car tires to make shoes and sandals.
13. I'm very sad not to accept in that group.
14. This is the first time he has played a computer game.
15. I used to have a dog.
16.The water was not warm enough for the children to swim in.
17. The doctor told me to eat more fruit and vegetables.
18. No one in the team plays better than Tom.
19. This book is interesting to read.
20. It takes me half an hour to travel to work by motorbike everyday.
21. Peter said “I'm not feeling well now."
22. The boy who was injured in the accident is now in the hospital.