There is no possibility that Bob can win the first prize in the match.是什么从句?

问题描述:

There is no possibility that Bob can win the first prize in the match.是什么从句?
是什么从句?为什么不用IT引导呢? O(∩_∩)O谢谢
为什么用there 不用 it ?

同位语
it is 是主系表结构 否定句用not 不是no
而possibility 是名词所以用 there be 句型