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。
Union is strength no matter when you're facing difficulties or in a dilemma. Cooperation plays an important part in getting you out of trouble.
There was a time when I was too proud that I overlooked my classmate, refusing to work together with them. Therefore, it was no doubt that I was left alone, suffering from loneliness. Unfortunately, a teacher impressed on me the value of cooperation. From then on, I learned to help others and turn to my friends for the help whenever I had difficulty finish a task on my own. Surely cooperation made a great difference. Now I am getting well with my friends.
My experience has teach me that only if we attach great importance with cooperation, can we go beyond ourselves. As the saying go "United, we stand; divided, we fall."
