◎ 题干
— Is the man over there Mr White? 
 —No, it _____ be him. I saw him in the office a minute ago.        
[     ]
A. may        
B. must        
C. mustn't        
D. can't    
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“—Is the man over there Mr White?—No, it_____ be him. I saw him in the office a minute ago.[ ]A. may B. must C. mustn'tD. can't…”主要考查了你对  【情态动词】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。