What the doctors really doubt is ____my mother will recover from the serious disease soon . A. when ...
2022-11-07 11:17:01 90次 2014-2015学年陕西西安庆安高级中学高一上期末英语试卷（解析版） 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
What the doctors really doubt is ____my mother will recover from the serious disease soon .
A. when B. if C. whether D. what
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