___ she couldn’t understand was ____ fewer and fewer students showed interests in her lessons. 选

问题描述:

___ she couldn’t understand was ____ fewer and fewer students showed interests in her lessons. 选
___ she couldn’t understand was ____ fewer and fewer students showed interests in her lessons.
A. What; whyB. That; what C. What; because D. Why; that

选A
请问主句在哪里,

同学,很高兴回答你的问题
这句话由两个从句构成,What she couldn't understand 是主语从句,也是整个句子的主句,why fewer and fewer studetns interests in her lessons.是表语从句.这句话的意思是
她所不能理解的是为什么越来越少的学生对她的课感兴趣.
有不明白的请继续追问,