假定英语课上英语老师要求同桌之间互相修改作文，请你修改你同桌的以下作文。文中共有
10处语言错误，每句中最多有两处。错误涉及一个单词的增加、删除或修改。
删除：把多余的词用斜线（﹨）划掉。
增加：在缺词处加一个漏字符号（∧），并在该词下面写出该加的词。
修改：在错的词下划一横线，在该词下面写出修改后的词。
注意：1、每处错误及修改均仅限一词。
2、只允许修改10处，多者（从11处起）不计分。
Have you ever heard the saying: All work and no play make Jack a dull boy? What this means is that if you study all the times you will become a boring person. You must go out and have a fun with your friends, otherwise you will lose him. No one wants to be friends with someone only talked about work and study.
Perhaps you have a confident problem. Please try to remember that you do is just for yourself rather than no one else, but do not compete with your classmates. No one can be happier in studying seven days and seven nights in a week.