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71.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。
Should students make friends online? Different students in our class held different opinions. Some of we agree with the opinion. The reasons are as follows: first, we make more friends on the Internet. Second, we can express ourselves free. Besides, making friends online can be good for English learning.
However, the others are against the opinions. The reason is because they think it is a waste of time making friends online. Besides, it has a worse influence on study. What’s more, students are easily cheating online. I think making friends online are good for us because I have made a great progress in my study.