假段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。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(＼)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。
The day before yesterday, I went to the bookstore where is near our school to buy a reference book. It was Saturday, so there was many people. Under the help of the shop assistants, I quickly got the book I needed. I was about to leave when I found someone trying to steal a man’s money. Although I was nervous, but I tried to think of a way to help. Suddenly, a good idea came me. I stepped on the man’s foot on purposes. As I expected, the man’s scream gives the thief a fright, whom quickly walked out of the shop. After hear my explanation, the man smiled and showed great gratitude to him.