短文改错。
假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌写的以下作文。文中共
有10处错误，每句中最多有两处。错误涉及一个单词的增加、删除或修改。
增加：在缺词处加上一个漏词符号（∧），并在此符号下面写出该加的词。
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。
It was a foggy day. The fog was such thick that it was impossible to see far. People were trying to
find their way but was lost in the fog. Mr. Smith had important meeting but no one could take him there.
He had to walk there but found himself lost. Suddenly a stranger told to him that he will take him there.
Mr. Smith thanked him but they started to walk there. The fog was getting thick, but the stranger had no
difficulty in find the way. Mr. Smith couldn't understand why, so he asked her, "How do you find the way
in the fog?" "It is no troubles to me," said the stranger, "I am blind."
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