A 

     If you are in a town in the Western country,you’ll often see people walk their dogs. It is true that a dog is the most useful animal in the world. But the reason why one keeps a dog has changed. Once upon a time,a man met a dog and wanted it to help him in the fight against other animals. He found that the dog listened to him and did what he told it. Later people used dogs for hunting for other animals. And the dogs did not eat what they got until their master agreed. So dogs were used for driving sheep and guarding chickens.

     But now the people in towns and cities do not need dogs to fight against other animals any more. Of course they keep them to frighten thieves. But the most important reason is that people feel lonely in the city. For a child,a dog is his best friend when he has no friends to play with. For a young wife,a dog is her child when she doesn’t have her own. For old people,a dog is also a child when their real children have grown up and left. Now people do not have to use a dog,but they keep it as a friend,just like a member of the family.

26.are more useful than dogs in the world.

   A. No other animals       B. Some animals

    C.Many animals       D. Few animals

27.In the past,people kept dogs because dogs.

    A.could fight against each other 

    B.met the people

    C.did not eat other animals   

    D. helped and listened to people 

28.Now people keep dogs in the cities because dogs.

    A.fight against other animals 

    B.are lonely

    C.are like their friends   

    D.are afraid of thieves

29.A dog can be.

    A.a child’s friend only

    B.a young woman’s son 

    C. old people’s real child   

    D. everybody’s friend

30.A dog will in a family.

   A. always be used            B. not be useful

    C.still fight            D. be a good friend

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