---Ihaven’tseenMr.Whiteforweeks.---What________tohim?A.musthavehappenedB.

发布时间:2020-08-07 04:23:48

---I haven’t seen Mr.White for weeks.---What ________ to him?A.must have happenedB.may have happenedC.can have happenedD.may happen

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C解析上文说有几个星期没见到Mr.White,下文问他出了什么事?是对过去的推测,在疑问句中用can
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