题目内容：

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l0处语言错误，每句中最多有两处. 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（\）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l0处，多者（从第1l处起）不计分.

My grandparents live in the countryside. They keep a dog calling Ah Bao. One day my grandparents go to work in the fields，taking along my little brother and Ah Bao. My brother and Ah Bao came to a river nearby and enjoyed himself. My brother was trying to catch a butterfly while he fell into a river. Ah Bao barked and immediate jumped into the water. Hearing about him barking，my grandparents hurried there and saw Ah Bao swimming towards the bank carrying my brother. Ah Bao did all he could save my little brother，that moved all the people present. Everyone praised Ah Bao for his bravery and kindn.