题目内容

. My MP4 player isn’t in my bag. Where __________ I have put it?
A．canB．must
C．shouldD．would
A。
can在此表推测，“can+have+过去分词”表示对过去情况的推测，主要用于否定式或疑问句中。句意为：我的MP4不在包里，我会把它放到哪里去了呢？
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