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。
To enrich students' school life, an excited competition was held on last Saturday on the school playground. Ten boys and ten girls selected by each class lined beside the rope and grasped it, eager waiting for the start. With the whistle blowing, the participants tried their best to pull the rope, while those standing by cheered desperately for him. Eventually, every students of the class won the competition was awarded a delicate notebook.
The competition was highly thought by students. Not only did it build up their bodies, but also strengthen their teamwork. Plus, the competition received positive response from parents and teachers, what made a hit in the circle of WeChat.
