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：在缺词处加一个漏词符号（∧），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的词。

注意：1. 每处错误及修改仅限一词；2. 只允许修改10处，多者（从第11处起）不计分。

Christine is just one of the girl in my class. I never know much about her except for that she is strange. She doesn’t talk many. Her hair is black and purple and she wear black sports shoes. The strange thing is that she wears black sweater all the year round, even on summer. She is, in fact, rather attractively and she never seems care what the rest of us think about her. As some of my classmates, I seldom talk to her with doubt how Christine dresses the way she does.

—Mrs. White looks old _____ her age.

—Yes. It worries her most _____ her hair is turning gray.

A. at / while                    B. in / if                        C. for / that           D. for / for