假定英语课上老师要求同桌之间交换修改作文,请你修改你同桌写的以下作文。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：在错的词下面画一横线，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。
A sports meeting was held in our school several days before. The last event was the 400-meter relay race, that had promised to be an exciting one. And so it was! Teams from every class joined in the race, but the winning team would be the champion of our school! So each player tries hard to win. The big crowd became quite silently and all of them had their eyes were focused as the team took their places. Heard the sound of the gun, the runners shot quickly and passed the relay sticks from one to another. Suddenly a runner from class 4 dropped his stick, but another runner picked them up and ran even faster. At the finishing lines, the runners from our class breasted the tape. Our class took a first place. Everyone cheered wildly and we felt extremely proud.before-ago
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(答案→)before-ago
解析：
【小题1】several days ago与过去时连用；
【小题2】that 不能引导限制性定语从句。
【小题3】上下文是顺接关系。
【小题4】全文都是过去时。
【小题5】应该用形容词与bee构成系表结构。
【小题6】eyes与fouse构成被动关系，这里作为宾语补足语，使用过去分词。
【小题7】hear与the runners构成主动关系，使用现在分词。
【小题8】it指代前面提到的his stick。
【小题9】终点线只有一条、
【小题10】序数词first前面用定冠词表示第一。