What the doctors really doubt is my mother wi1l recover from the serious disease
来源:网络
时间:
推荐文章

What the doctors really doubt is ________my mother wi1l recover fromthe serious disease soon.
A.when B.how C.whether D.why
试题答案
答案:C
解析:| whether引导的表语从句,表示“是否……”。
|