问题
选择题
If the traffic light is red,you _____cross the road.
It's too dangerous. [ ]
A. don't
B. needn't
C. mustn't
D. wouldn't
答案
答案：C
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If the traffic light is red,you _____cross the road.
It's too dangerous. [ ]
A. don't
B. needn't
C. mustn't
D. wouldn't
答案：C