18. _____ the doctor really doubts is________ his mother will recover from the serious disease soon.
举一反三
- What the doctor is uncertain about is ______ my mother will recover from the serious disease soon.
- What the doctor is uncertain about is ______ my mother will recover from the serious disease soon. A: when B: if C: whethe D: why
- What the doctors really doubt is ____________ my mother will recover from the serious disease soon. A: when B: why C: whether D: that
- What the doctors really doubt is _____ my mother will recover from the serious disease soon. A: when B: how C: whether D: why
- What the doctors really doubt is ________ my mother will recover from the serious illness soon.