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。
Whenever we are faced with problems, cooperation play an important part in getting us out of trouble. There was a time when I was too proud that I overlooked my classmates, refusing work together with them. Therefore, there was no doubt that I was left alone, suffer from loneliness and failure. Unfortunately, a teacher impressed on me the value of cooperation. From then on, I learned to help others or turn to my friends for help whenever I had difficult finishing a task on my own. Surely cooperation made a great difference. Now I am getting on well to my friends. My experience has been taught me that only if we attach great importance to cooperation can we go beyond myself.
