Be careful . You _______ cross the road when the traffic light is red . The traffic is heavy at this...
2023-01-29 00:29:07 11次 2015届广东揭阳揭西县八年级上学期期末质量检测英语试卷（解析版） 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
Be careful . You _______ cross the road when the traffic light is red . The traffic is heavy at this time of day .
A. must B. mustn’t C. can D. needn’t
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