阅读下面短文，并借助上下文和插图补充所缺信息。每个空格只能填写一个形式正确、与短文意思
相符的英语单词。
Bob and David are good friends, but they like to joke on each other sometimes. One day they went to
London for their holidays. They went to the (1)______ and bought their tickets. When the train arrived,
Bob got on the train first, but he dropped his (2)______ on the platform (站台) without knowing it. David
was behind him and quickly (3)______ it up. Without saying a word to his friend,he put it in his (4)______.
After they had been in the (5)______ for a little while, they saw the conductor (列车员) coming along,
shouting, "Ticket, please!" Bob (6)______ for his and of course he couldn't find it.
"Oh, dear, I can't (7)______ my ticket, David." he said.
"Have another look, Bob; it must be (8)______," said David. "No, I can't find it anywhere. What shall I
do?" "Perhaps you'd better hide under the (9)______ so that the conductor won't see you."
So Bob crawled (爬) under the seat and lay there quietly. Soon the conductor stood in front of David.
"Ticket, please." he said. David handed him (10)______ tickets and said, "This is mine. The other is my
friend's. He prefers to travel under the seat.''
