单项选择题
A 根据下面短文回答下列问题。 There were a lot of mice(老鼠)in a house. The man of the house got a cat. And the cat killed many of the mice. Then all the mice got together to see what they could do about the cat, but none knew what to do. At last a young mouse said, "We must put a bell(铃)on the cat. Then, when the cat comes near, we’ll hear the bell and run away. So the cat will never catch any of us." The eldest mouse asked, "It is a good idea, but who will put the bell on the cat" No mouse answered. At last he said, "It is easy to say things, but it is hard to do them." |