题目内容：

假定英语课上老师要求同学们交换修改作文，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。

增加:在缺词处加一个漏词符号（∧ ),并在其下面写出该加的词 .

刪除:把多余的同用斜线（\)划掉.

修改:在错的词下画一横线，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.

Two head are better than one.This proverb means we can make things are easier by working with others, who shows the significance of cooperation.

Take my experience as example.Once we were given quite a complicated physics problem by our teacher but we were expected to work it out in any possible way. Considering that I was very good at identifying physical principles and my friend Joe was better at performing complexly calculation, we decide to work together . Magically ,we solved a problem efficiently and even were better than the top student choose to work alone.

This experience really impressed myself a lot. So always keep it in mind that cooperation not only contributes greater working efficiency but also explores our potential.