文档介绍：Exercise 3
1. By working hard he gained rapid promotion.
2. Some people waste food while others haven't enough.
open the window so that we can breathe fresh air.
4. He was so angry that he couldn't say a word.
5. Having eaten too much, he couldn't go to sleep.
6. Although I get high grades in my studies.
7. whatever dangers you come across.
8. It was curiosity that
9. so upset that I made a terrible mistake
10. Without perseverance and diligence,you can’t achieve your goals.
11. I'm grateful for what you have done for me
12. What impressed me most was that he risked his life to save the girl.
13. I still remember the days when we were friends, sharing happiness and sorrow together.
14. I burst into tears when I saw the hero die.
15. Unforunately, he failed to catch the thief in the end.