短文改错。
假定英语课上老师要求同桌之间交换修改作文,请你修改你同学写的以下作文。文
中共有10处语言错误,每句中最多有两处丁错误涉及一个单词的增加、删除或修改。
增加：在缺词处加一个漏字符号（n）,并在其下面写出该加的词。
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。
One day, a blind man was sitting on street with a sign by his feet that read:
"I am blind, please help me, A gentleman walked through and stopped to have
a look at the sign, noticed only a few coin in the man's hat. He took out some
bills from his wallet and put it into the hat. And then he turned the sign over again,
wrote a new message and left. Several hours later, the gentleman returned To his
happy, he found the hat almost full of bills and coins. He didn't expect that the
new message does work, which read "It's spring now, and I can't see it."
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，第二堆运走
后，剩下的两堆煤正好相等，第一堆煤原来有（）吨。