__that the president's economic policy will help curb inflation 为什么选It is hoped 而不选the hope

问题描述:

__that the president's economic policy will help curb inflation 为什么选It is hoped 而不选the hope
请知道的大侠解释下谢谢了!
the reason I did not go to France was__ I got a new job
为什么不用because 用 that

it is said that据说
it is hoped that有望
这种it is 加过去分词,加that是固定的主语从句的公式
第二句,不是状语从句,是表语从句,that不做任何成分,只是起到连词的作用
之所以不是状语从句因为主句缺表语,was后面是表语