题目内容：

The subject of "what is interesting is that i do not even know him" is___.
B.interesting
C.what is interesting
答案是C,我觉得B也可以呀

优质解答

subject的意思是“主语“.这句话翻译成：
在what is interesting is that i do not even know him这句话中,主语是what is interesting .
选B的话,就是 the subject （of "what is interesting is that i do not even know him"）is interesting.(这个主语真有趣）