Some citizens are talking about _________ the libraries in universities will be open to the public. ...
2022-09-22 16:02:28 54次 江苏省江阴市华士片、澄东片2019届九年级下学期期中考试英语试卷 单选题 反馈错误 加入收藏 正确率 : 100%
题目内容：
Some citizens are talking about _________ the libraries in universities will be open to the public.
A. what B. when C. which D. where
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