---There’ssomebodyatthedoor.Who
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问题详情:
--- There’s somebody at the door. Who _____ it be? Is it the postman?
--- No, it _____ be him. It’s just seven o’clock. It’s too early.
A. may; can’t B. will; won’t C. may; mustn’t D. must; may not
【回答】
A
知识点:情态动词
题型:选择题