Question

(经典回放)What the doctors really doubt is ________ my mother will recover from the serious disease soon．________

[　　]

A．when

B．how

C．whether

D．why

Answer 1

答案：C
解析：

句意为：“医生真的怀疑我妈妈是否能很快从重病中恢复过来。”“________ my mother will recover from the serious disease soon．”是一个表语从句。根据doubt可知，所怀疑的应是是否能治好病，所以要填whether。