It's foggy today. I'm not sure _______ the highway will be closed soon. A. whether B. when C. how D....
2022-12-08 15:15:21 58次 2014-2015学年江苏省张家港市九年级上学期期末英语试卷（解析版） 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
It's foggy today. I'm not sure _______ the highway will be closed soon.
A. whether B. when C. how D. why
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