不清楚这个句子的结构

题目

不清楚这个句子的结构
mrs,white didn't dare to tell him what the noise he had heard really was.
后面的部分what the noise he hed heard really was,was怎么在最后啊,这个是什么从句啊,不太会判断,是主语从句吗?这样的从句该用什么样的语序翻译啊?

答案

what the noise he hed heard really was是一个名词性从句.整个把它看成一个名词你想,如果是what was the noise he hed heard 那不就是一个问句了么.就不能是一个名词了应该算是宾语从句,tell sb sth.双宾语的句型....