题目内容：

假定英语课上老师要求同学之间交换修改作文， 请你修改你同桌写的以下作文。文中共有10处语言错误，每句中最多两处。错误涉及一个单词的增加、删除或修改。

增加：在此处加一个漏字符号(∧)，并在其下面写出修改的词。

删除：把多余的词用斜线(＼)划掉。

修改：在错的词下划一横线，并在其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（从十一处起）不计分。

One day I happen to find a chatting room on my QQ, there people were chatting in English . I tried to chat with some of them . To my surprised . I found the oral English of some junior students were better than me . I asked them for advice and they told me to practise more on QQ. But every day after that I would spend one hour practise my oral English on QQ. Day by day I learned from many useful words and expressions . With time went by, I found that I could even communicate some college students freely .