题目内容：

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处语言错误，每句中最多有两处。每处错误仅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(∧)，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。

Five years ago, my father, who was in his forty, lost his job. At first, he was in low spirits and often gets drunk. One day, he read a story about Ren Zhengfei and it was greatly inspired him. He turned to a friend, with which help he set up a factory. In his factory waste materials were made full use to produce environmentally-friendly packing bags. With these bags well receiving, his factory went smooth. Now, he has extra money but he often helps those in need. So far, he has donated as many as $10,000. How a great father I have!