作业帮The light is out in her room.she to bed A.must have gone B.had gone C.must be going D.must go答案是选A的,为什么,我不懂.这个是考 have gone to的用法?
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The light is out in her room.she to bed A.must have gone B.had gone C.must be going D.must go答案是选A的,为什么,我不懂.这个是考 have gone to的用法?
The light is out in her room.she to bed A.must have gone B.had gone C.must be going D.must go
答案是选A的,为什么,我不懂.这个是考 have gone to的用法?
The light is out in her room.she to bed A.must have gone B.had gone C.must be going D.must go答案是选A的,为什么,我不懂.这个是考 have gone to的用法?
不是考have gone to,而是must have done的用法
must have done表示十分肯定的推断：
她屋里灯灭了,肯定是睡了.
A 你问为什么啊。因为这个是情态动词表示推测。MUST表示肯定推测，HAVE done的形式证明是已经发生的事。所以从她的房间里的灯灭了就可以推断出她肯定睡了。O(∩_∩)O~。还有个小地方。must否定式是CAN'T不是MUSTN'T哦。
选A是因为must表示猜测，对现在的猜测。意思是她一定睡觉去了。其实，这个是考must的一种用法。
因为有“她的房灯灭了”作为依据，猜测她“一定是睡下了”是比较有把握的（到我们看见灯灭时，她已睡下了，完成时态），
must have gone 表示对发生的事的一种猜测和推测
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