组卷网 > 初中英语综合库 > 单词辨析 > M > May
题型:单项选择 难度:0.65 引用次数:311 题号:1586876
— There is somebody knocking at the door. Who ________ it be?
— I’m not sure. It ________ be a postman.
A.may;mustB.will;canC.can;mayD.may;will

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