【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：在缺词处中加一】

　　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：在缺词处中加一个漏字符号（^），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．

　　I'd like to share a unforgettable experience with you．It happened in a warm Sunday afternoon in August．I go shopping with my cousin，Li Ming．When walk in the street，we found a young man，who was big but strong，stealing a woman's wallet．We stopped her immediately．Though he stared at us angry，we didn't feel frightened and tried to make him to realize his bad behavior．Because our bravery，he left without saying a word．The woman thought highly of us for which we had done．In my opinion，it's our duty to fight against bad behaviors．