题目内容

 —Has your father got up?
—Sorry, I’m not sure. He __________ got up. Please go and see for yourself.
A．must haveB．can’t haveC．would haveD．might have
D
must have done一定做过某事，用于肯定句中，疑问句否定句中用can或could来代替，表示对过去事实比较肯定的猜测。might have done可能做了某事，用于肯定句和否定句中，表示对过去事实不太肯定的猜测。由I’m not sure可知并不肯定，故选D。
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