出卷网(Chujuan.Net)为中小学教师出题组卷参考：月考试卷、模拟试卷、期中期末试卷

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。每处错误仅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。

Now I’d like to tell you something that took place in my school yesterday. In the afternoon we had held a grown-up ceremony for our come 18-year-old birthday. At first we made an promise that as grown-up we should have a sense of duty for our society from now on. Then we expressed our thanks to our parents they had gone through hardships to bring us up and our teachers who had been educating us patient. And our teachers also gave them cards expressing their good wishes. Finally we put on wonderfully performances, singing or dancing. We learned a lot from the activity. I think it is of great important for us. I will never forget that day in my life.