短文改错（共10小题；每小题1分，满分10分）
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(∧),并在其下面写出修改后的词。
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 have many friends, so my best friend is called Li Ting. I met him about five years before in a class where we attended together. Though we didn’t know each other before, but we have lots of things in common. At that time, the pressure on us to study was quite heavily. We both hoped to pass the National College Entrance Exam and entered university. She was very diligent and we both studied hard. I was good at maths while she good at English. Finally, we both did very well in the exam. In fact, she gave me a lot of helps with my study. Our friendship has growing a great deal over the last five years.