◎ 题干
I'm afraid Mr Harding ______ see you now. He's busy.        
[     ]
A. can't          
B. mustn't      
C. shouldn't      
D. needn't
◎ 答案
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“I'm afraid Mr Harding ______ see younow. He's busy.[ ]A. can'tB. mustn't C. shouldn'tD. needn'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。