---Amanansweredthephone．Isupposeitwasherhusband．---It________herhusband

发布时间：2020-08-07 04:23:50

---A man answered the phone．I suppose it was her husband．---It ________ her husband．He has been dead for ages．A.mustn’t beB.couldn’t have beenC.may not have beenD.mustn’t have been

网友回答

B解析那不可能是她的丈夫，因为他去世有好几年了。对过去的事情进行推测，“当时不可能”：couldn’t/can’t have done
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