If there is someone doing better than we are.为什么用doing
问题描述:
If there is someone doing better than we are.为什么用doing
答
doing 是现在分词,作定语,修饰someone;someone doing 意义上(即逻辑上)是主谓关系,所以用现在分词.举例:There are twenty students playing football on the playground.(=There are twenty students who are playing football on the playground.相当于定语从句.)