根据短文内容，完成下面的任务。

    Jeff has a white pet dog. It is very smart. It can buy newspapers for Jeff. Every morning, Jeff puts one dollar into the dog's mouth and it goes to the shop to buy newspapers for Jeff.

    Jeff has a good friend named Mark. Jeff tells Mark about his smart dog. Mark doesn'tbelieveit. Today, Mark comes to see Jeff in the morning. (A)杰夫正在跟他的狗玩耍。Mark says, "I will give your dog money. I don't think it can buy newspapers. "

    "Have a try (试一下), " says Jeff.

    Then Mark puts the money into the dog's mouth and the dog walks out. After one hour, the dog doesn't come back.

    "How much money do you give the dog?" asks Jeff.

    "Five dollars," says Mark.

    (B)"If it has five dollars, it will go to the movies." says Jeff.