◎ 题干
— Margaret ________ stay at home all day long in front of the computer.
— That's right. She should go to the fitness center with us.
[    ]
A. doesn't have to  
B. couldn't
C. oughtn't to  
D. may not
◎ 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“— Margaret ________ stay at home all day long in front of the computer.— That's right. She should go to the fitness center with us. [ ]A. doesn't have toB.…”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。