增加：在缺词处加一个漏字符号(∧)，并在其下面写出该加的次。
删除：把多余的用斜线(＼)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。
With the aim of enriching our school life, our school hold a chorus competition last week. Our teacher encouraged us take an active part in the activity. Late, we carried out a heated discussion to select songs. Finally all student in our class agreed on sing "Defending Yellow River" in the competition. In the chorus, we sang with full of passion under the direction of our conductor. Which excited us most was that we won a first prize. During the competition, not only were we proud of us triumph, but also deep impressed by the meaning of cooperation.
