1. 选词填空

make a difference, under control, earn money, set up, at first, give up, at the same time, no longer, be grateful to, break into a smile

1. （1） I didn't like running , but I enjoy running very much now. 
3. （2） It is very hard to work and study . 
5. （3） She playing the piano because she did not have much talent for music. 
7. （4） When a thing has been used, it is new. 
9. （5） It took the firefighters several hours to bring the fire . 
11. （6） This school in 1978 so it has a history of more than 40 years. 
13. （7） He has to to support his family. 
15. （8） As teachers, we must believe that we can to the lives of our students. 
17. （9） When the little girl saw her birthday presents, she . 
19. （10） I all the doctors for their painstaking care when I was ill.