英语非谓语不定式相关的问题

更新时间2019-03-02 01:41:54

It is uncommon for ther ____problems of communication between the old and the young.

A being B would be C were D to be

这句话为什么是to be 真是不明白，主语 there 和 problem 之间哪有被动关系？？太乱了求详细解答！！

It is not uncommon for there to be problems of communication between the old and the young.：老年人和年轻人之间存在沟通问题是不常见的。
句中there to be 用在：It be + adj. for...的结构中。
如，It was too late for there to be any buses. 时间太晚，不会有汽车了。