问题
选择题
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
答案：C
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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：C