---We expected you yesterday．---I'm sorry. I ______ you say that I couldn't be here until today．A.must have calledB.would be callingC.could have been callingD.should have called
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D解析情态动词加不定式的完成式表示对过去所发生情况的推测，“should + have +过去分词”，其肯定式表示过去本应发生的事却没有发生，