it is said that ___to classic music may be helpful in improving teenagers'taste.
问题描述：
it is said that ___to classic music may be helpful in improving teenagers'taste.
A being exposed B exposing C having exposed
the answer is A,why and translate it
答
being exposed是动名词exposing的被动形式做主语；而exposing表主动意义错误；having exposed是是动名词exposing的完成形式,表示该动作先发于may be 所表示的时间,没有必要用完成形式.翻译下据说置身于目录古典音乐的氛围里也许有助于增进十几岁的青少年的品味。