完形填空

　　Gail and her dog, Sam, are standing at the street corner．They’re waiting for the cars to go by．They want to go 　　1　　 the street．She is waiting for Sam to decide when they should cross．

　　Some blind people use special, trained dogs to help them tell when and where they would go．But not every dog can do 　　2　　．A dog for the blind must be clever．The dog must be 　　3　　 at a special school．He is taught to walk 　　4　　 the trainer’s legs．He is taught to walk 　　5　　 his trainer does．

　　The blind person goes to the school too．He practices with the dog．He holds the leather belt(皮带)around the dog’s neck tightly(紧紧地)．　　6　　 he feels the dog’s movements and knows when and where to walk．

　　At the street corner Sam doesn’t watch the 　　7　　．It’s not because he’s careless．It’s just because dogs can’t 　　8　　 red lights from green ones．He is trained to watch the cars, and tell what the time is for him and Gail to cross．

　　Sam is 　　9　　 to Gail．He does her seeing for her．He keeps her out of danger．But Sam is not only Gail’s 　　10　　．He’s her best friend, too．

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完形填空阅读下面短文, 掌握其大意, 然后从各题所给的四个选项(A、B、C和D)中, 选出最佳选项. Gall and her dog, Sam, are standing at the street corner. They're waiting for the cars to go by. They want to go __1__ the street. She is waiting for Sam to decide when they should cross. __2__ blind people use special, trained(受过训练的) dogs to help them tell when and where they would go. But not every dog can do __3__. A dog for the blind must be clever. The dog must be __4__ at a special school. He is taught to walk __5__ the trainer's legs. He is taught to walk __6__ his trainer does. The blind __7__ goes to the school, too. He practices with the dog. He holds the leather belt(皮带) around the dog's neck tightly(紧紧地). __8__ he feels the dog's movements and knows when and where to __9__. At the street corner Sam doesn't watch the __10__. It's not because he's careless. It's just because dogs can't __11__ red lights from green ones. He is trained to watch the cars, and tell __12__ the time is for him and Gall to cross. Sam is __13__ to Gall. He does her seeing for her. He keeps her __14__ danger. But Sam is not only Gail's __15__. He's her best friend, too.

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