题型：语法填空（语篇） 题类：模拟题 难易度：普通
黑龙江省哈尔滨市第六中学2017届高三下学期英语第一次模拟考试
When you take a walk in any of the cities in the West, you often see a lot of people (walk) with dogs. It is still true that the dog is the most useful and faithful animal in the world. But the reasons why people keep a dog(change). In the old days, people used to train dogs to protect themselves against the attacks frombeasts. And later they came( realize) that the dog was not only usefulwilling to obey its master. For example, when people used dogs for hunting, the dogs would not eat what they caught without(permit). But now people in the city need not protect themselves against attacks of animals. Why do they keep dogs, then? Some people keep dogs to protect themselves from robbery, but the (important) reason is for companionship. For a child,dog is his best friend when he has no friends to play with; for a young couple, a dog is child when they have no children; for old couples, a dog is also their child when their real children have grown up. So the main reason why people keep dogs has changedprotection to friendship.
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