◎ 题干
-Turn off the TV, Jack.___________ your homework now?      
-Mum, just ten more minutes, please.           
[     ]

A. Should you be doing        
B. Shouldn't you be doing      
C. Couldn't you be doing      
D. Will you be doing

◎ 答案
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◎ 解析
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◎ 知识点
    根据魔方格专家分析,试题“-Turn off the TV, Jack.___________ your homework now? -Mum, just ten more minutes, please.[ ]A. Should you be doing B. Shouldn't you be doingC. Couldn'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。