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Christine was just a girl in one of my classes.I never knew much about her except (去掉for) that she was strange.She didn't talk (much).Her hair was black and purple,and she (wore) black sports shoes and a black sweater,although in (去掉the) summer.She was,in fact,rather (attractive),and she never seemed (加入to) care what the rest of us thought about her.Like the rest of my classmate,I didn't really want to get (close) to her.It was only when we did (our) chemistry project together that I (began) to understand why Christine dressed the way she did .