短文改错 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

题目：

短文改错

       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10处，多者(从第11处起)不计分。

     They are some good things about open education. This way of teaching allows the students to grow

natural, and to develop their own interests in many subjects. Open education allow students to be

responsible (负责) for his own education, as they are responsible for what they do in life. Some

students don't do good enough in a traditional (传统的) classroom. The open classroom must allow

them to enjoy learning. Some students will be happy in an open educational school than in traditional

classroom. They needn't worry about grades or rules. For students worry about  these things a lot of,

it is a good idea to be in an open classroom.