短文改错 (共10小题；每小题1分，满分10分)
假定在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。错误涉及一个单词的增加、删除或修改。
增加：在缺词处加一个漏词符号(∧)，并在其下面写出该加的词。
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l0处，多者(从第11处起)不计分。
Students need enough sports and activities to keep fit and relax, and in some schools students are not giving enough time to do outdoor activities. Teachers ask students to spend most of their time at studies. But if students feel tired, they can’t pay attention to that they’re studying. They will be in a bad health. It’s also not good for his studies. In my opinions, it’s important give students enough time to do outdoor activities. Then they will enjoy better health and work hard. So please pay more attention to student health and growth.