---Listen!Someoneisknockingatthedoor.---________beMary.Shehasjustbeento

发布时间:2020-08-04 19:19:25

---Listen!Someone is knocking at the door.--- ________ be Mary.She has just been to BeijingA.She mustn’tB.It can’tC.It mustD.She may

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C解析此题充分体现了一题多考点的命题倾向,考查了情态动词的选择,代词的选择以及隐含语境has been to的用法。
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