摘要: My MP4 player isn’t in my bag.Where I have put it? B.must C.should D.would 答案 A 解析 考查情态动词.由句意“我的MP4不在我包里.我可能把它放哪儿了? 可知应选A.can have done 过去可能做过而must have done“过去肯定做过 .只能用于肯定陈述句,should have done本应该做过 ,would have done只能用于虚拟语气.

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