完形填空

　　Once a clever man said to an honest(诚实的) man, “Let's 1 riddles(谜语). If one of 2 can't guess, he must give some money to 3 .”He thought he was 4 than the honest man.

　　“All right,” said the honest man. “But I'm not good at 5 riddles you know, while you are good at it. If you can't guess, you should lose fifteen pence. If I can't, I lose only five pence.” The clever man thought 6 was difficult to him, so he agreed, “OK, who will begin first?” he asked. “Of course I,” said the honest man. “Listen, there is an animal. It has four legs, two of them can run, 7 two can fly. Tell me what 8 ?” The clever man thought hard, but he couldn't guess what it was. He said at last, “I can't. I will give you 15 pence, Tell me now. What is it?” The honest man laughed and said, “I can't, 9 . I'll have to give you 5 pence.”

　　So the honest man won 10 pence off the clever man.

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