living in cities costs too much.为什么说这句话的主语是动名词?明明是living in cities
问题描述：
living in cities costs too much.为什么说这句话的主语是动名词?明明是living in cities
答
living in cities 动名词短语做主语.
living in cities costs too much.为什么说这句话的主语是动名词?明明是living in cities
living in cities 动名词短语做主语.