◎ 题干
You _    swim in this river of the park. It's dangerous !        
[     ]
A. mustn't  
B. needn't  
C. won't  
D. aren'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“You _swim in this river of the park. It's dangerous ![ ]A. mustn't B. needn't C. won't D. aren'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。