◎ 题干
The tourists from Australia _______have hurried to the airport-the flight was called off because
of the heavy fog.
[     ]
A. mustn't  
B. couldn't    
C. needn't  
D. wouldn'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“The tourists from Australia _______have hurried to the airport-the flight was called off becauseof the heavy fog. [ ]A. mustn't B. couldn'tC. needn'tD. w…”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。