◎ 题干
— We would appreciate it if you could stay for lunch.
— Sorry, I _____. I have another appointment.
[     ]
A. won't
B. shan't
C. can't
D. mustn'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“—We would appreciate it if you could stay for lunch.— Sorry, I _____. I have another appointment.[ ]A. won't B. shan'tC. can't D. mustn'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。