短文改错。
下面文中共有10处语言错误，要求你在错误的地方增加、删除或修改某个单词。
增加：在缺词处加一个漏词符号（/\），并在该句下面写出该加的词。
删除：把多余的词用斜线（\）划掉。
修改：在错的词下划一横线，并在该词下面写出修改后的词。
注意：1．每处错误及其修改均仅限一词；
2．只允许修改10处，多者（从第11处起）不计分。
A Frenchman was once visiting London. He wished to take a walk to see a city. But he was afraid he
might get lost because he know no words of English. So before he left his hotel, he stopped in the first corner
and carefully copied in his notebook the names of the street that he was staying. Then he walked on. At last,
he got lost. After several hours he found a policeman. The Frenchman tried his best to explain the policeman
that he didn't know the name of his hotel, and he knew the name of the street. He then showed the policeman
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