Mark Twain was a great American writer .One day he went to a city

题目

Mark Twain was a great American writer .One day he went to a city
Mark Twain was an American writer.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 asked him for his ticket.Mark Twain looked for his ticket here and there,but he couldn’t find it.The conductor knew Mark Twain was a famous writer.She said,“Show me your ticket on your way back.And if 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 am going.”的中文翻译且回答一个问题：Mark Twain didn't show his ticket because he couldn't( )it （供选择的答案有：buy \bring\find\know)

答案

马克吐温是美国著名作家.一天他坐火车想去城市看望他的一位朋友.他是个大忙人,经常忘记一些东西.当他坐上火车后,检票员向他检查火车票.马克吐温到处寻找却没有找到.检票员知道他是有名作家,就说：“在你回来的路上再...