1. Trung was given a mobile by his parents on his birthday.
2. I'd rather you didn't make any noise.
3. I have never used a better computer than this.
4. It's ages since he last chatted with his classmates through the Internet.
5. The last time we saw her was when we left university.
6. Unless you leave me alone, I will call the police.
7. I wish I hadn't taken my doctor's advice.
8. By whom was "The advanture of Tom Sower" written?
9. The storm prevented the train from running.
10. Some people are excited about living in the city.
11. If you don't practice English everyday, you can't improve your English.
12. Because it rained heavily, we couldn't go to school this morning.
13. Johnny said that she wanted to know if Alice had got shampoo, she had to wash her hair.
14. He asked me to listen and if I could here something coming.
15. The prisoner is thought to have escaped by climbing over the world.