there are a number of factors to consider 还是to be

问题描述:

there are a number of factors to consider 还是to be
factors to consider / factors to be considered 好像两种用法都有,为什么?

都可以具体是省略,前面的句子省略的是there are a number of factors (for people) to consider 后面的是there are a number of factors (that are) to be considered再给你说两个句子不知道你能不能领会there is a lot of homework to dothere is a lot of homework to be done 查看原帖>>