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（∧），并在其下面写上该加的词。

删除：把多余的词用斜线（\）划掉。

修改：在错的词下划一横线，并在该词下面写上修改后的词。

注意：1. 每次错误以及修改仅限一词；

2. 只允许修改10处，多者（从第11处起）不计分。

I have a very busy school life every day. Beside my lessons every day, I’m occupied by various activities. What I have to finish first are masses of homework. So I have to set aside at least of 4 hours a day to do it. In addition to that burden, many out-of-class activities held in my school, some of them, I dare say, are very boring. Although I do think exercise is important to my healthy, exercise also takes up a lot of his spare time. However, I am tired of too much everyday exercise. Every night I am exhausting when I go to bed. How I wish I were in college now.