阅读短文，然后做下列练习。

　　Mark Twain (马克·吐温) was an American writer (作家). One day he went to a city by train. He wanted to see one of his friends there. He was a very busy man. He usually forgot something.

　　When he was in the train, the conductor (列车员) asked him for his ticket. Mark Twain looked for the ticket here and there, but he couldn't find it. The conductor knew Mark Twain. She said, “Show me your ticket on your way back. And if (如果) you can't find it, it doesn't matter.”

　　“Oh, but it does,” said Mark Twain. “I must find the ticket. If I can't find it, how can I know where I'm going?”

A．根据短文判断下列句子的正误，正确的画T，错误的画F。

1．Mark Twain usually forgot something because he was very busy.

2．Mark Twain did not want to show his ticket to the conductor.

3．The conductor didn't know Mark Twain.

4．The conductor said Mark Twain could show his ticket on his way back.

5．Mark Twain couldn't find his ticket, so he bought another one.

B．选择正确答案。

1．Mark Twain was a ________.

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2．Mark Twain went to the city ________.

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3．Mark Twain went to the city to ________.

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4．When he was in the train, the conductor asked him for ________.

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5．Mark Twain didn't show his ticket because he couldn't ________ it.

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