The most frightening thing of all was that not a sound could be heard.为什么was放在all后面

The most frightening thing of all was that not a sound could be heard.为什么was放在all后面
The most frightening thing of all was that not a sound could be heard.为什么was放在all后面

The most frightening thing of all was that not a sound could be heard.为什么was放在all后面
the most frightening thing of all是整句话的主语,was 是谓语动词,因为是一般过去式,用was. that后引导的是表语从句.所以was 和all 不是连在一起得.