完形填空。 One summer evening, a 1 boy was trying to hit (击中) a bottle with a slingshot (弹弓). The bottle was about 7 to 8 metres 2 . The boy tried many times but still couldn't hit it. His mother just kept 3 him small stones. A girl walked by. She watched the boy for some time and said to the mother, 'Let me show 4 how to shoot.' 'No, thank you,' said the mother, 'he is blind (失明的).' The girl was 5 and asked, 'How can he hit the bottle then?' 'I tell him he can do it,' said the mother, ' 6 he tries hard enough.' The little boy tried again and again. The mother always told him that he was doing 7 . The boy 8 more confident (自信). After a long time, it 9 dark. The girl said goodbye to the mother and son. When she turned to leave, she heard a stone hit the bottle. The little boy 10 hit it! With confidence and patience, nothing is impossible. (     )1.  A. 10-years-old (     )2.  A. long (     )3.  A. passing (     )4.  A. you (     )5.  A. surprise (     )6.  A. before (     )7.  A. well (     )8.  A. sounded (     )9.  A. turn (     )10.  A. hardly B. 10 years old B. away B. throwing B. it B. surprised B. if B. better B. turned B. got B. finally C. 10-year-old C. high C. putting C. him C. surprising C. until C. best C. became C. grows C. almost