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：在错的词下面划一横线，并在其下面写出修改过的词。
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。
Stanley and Frank are next door neighbor who study in the same class, so they walked together to and from school. Some day as they were walking home together, it sudden started to rain. Stanley quickly opened his umbrella and said, “My mother surely have foresight. She said on this morning it would rain and told me to carry my umbrella with me.” Frank smiled and walked to him, said, “My mother has even great foresight. She told me not to carry an umbrella and as she knew you would certainly have with you. Don’t you agree?”