2. A. again　　　 B. once　　　　　 C. always　　　　　　　 D. still

1. A. nothing　 B. anything　　 C. everything　 D. things

15. D。关于…方面可用about或on。on通常表示“关于…专著等方面”。

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　　 　　　 Mr. Yorkwell was blind when he was seven. He had seen many doctors but none of them could do 　1　 　for him. He could never see the world 　2　 . Now he has a seeing-eye dog. A seeing-eye dog can help a blind man 　　　　3　 　along the streets. He is called a seeing-eye dog　 　__4　 　he is the eye of a blind man.

　 　 One day, the bus was full of people 　5　 　Mr. Yorkwell 　6　 　the bus with his seeing-eye dog. There were no seats for Mr. Yorkwell at all. He stood 　7　 　so many people before a few bus-stops passed. Then , one man got up and 　8　 　his seat and got off the bus. The dog took little 　__9　 　there. The dog began to push the people on each side with his 　__10　 . He pushed and pushed until the people around moved away and there was enough place for 　11　 　people. Mr. Yorkwell sat down and the dog got up on the seat　 　12　 　Mr. Yorkwell’s. He lay down and put his head on the blind man’s 　13　 . Soon he fell asleep. People around were not 　14　 　with him and all 　15　 　at this.

14. A。交代前一句的原因：这么多的车辆行驶。many, much, few, little前用so修饰。

13. D。车辆使用率低，耗油就少， oil不可数，故用less修饰。

12. B。路上行驶的车辆要更少，motorcar是可数名词，故用fewer。

11. A.。定语从句的引导词同时在从句中充当地点状语。

10. A。下文有another mother 提示。

9. D。根据下文可知，母亲们轮流接送小孩，由此推断，take turns(依次、轮流)符合文意。

8. C。too… to为固定结构，表示“太……而不能”。