Sorry, I’m late. I ____ have turned off the alarm clock and gone back to sleep again.

A.mightB.shouldC.canD.Will

A

解析試題分析:考查情態(tài)動詞表示推測的用法區(qū)別。該題的謂語動詞結(jié)構(gòu)為“情態(tài)動詞+have+過去分詞”,表示對過去情況進行推測。A項表示“過去可能會發(fā)生某事,但并未發(fā)生”;B項意為“本應(yīng)該做某事但實際未做”;C項can用語推測時常用于否定句和疑問句,故排除;D項 will have done不是推測而是將來完成時,表示到將來某時就完成某事時用的;根據(jù)句意“對不起,我遲到了,我也許關(guān)掉了鬧鐘又回去睡覺了!惫蔄是正確。
考點:考查情態(tài)動詞表示推測的用法區(qū)別。

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