增加：在缺词处加一个漏字符号(∧)，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：在错的词下画一横线，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。
I know a professor who's also a millionaire. A few years ago he have an important invention and made fortune. Although he was very successful, he didn't forget the village children who was suffering from poverty and hungry. He could have lived comfortably so he donated all his money to a village school so that the children would not dropout. He also equipped teachers offices with furniture. Her ultimate goal was for all children to go to school. If he couldn't do so, he would be feel guilty. The professor's kindness has been appreciated for all. It is said that the professor has became a philanthropist(慈善家).
