◎ 题干
— ________  you interrupt now? Can't you see I'm on the phone?      
— Sorry  Sir, but it's urgent.       
[     ]
A. Can        
B. Should        
C. Must      
D. Would
◎ 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“— ________you interrupt now? Can't you see I'm on the phone? — SorrySir, but it's urgent.[ ]A. CanB. ShouldC. MustD. Would…”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。