Our class discussed the question of __________it is necessary for us students to use mobile phones o...
2022-12-30 16:50:04 82次 2014届江苏南京师大附中江宁分校高一下期末调研英语试卷（解析版） 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
Our class discussed the question of
__________it is necessary for us students to use mobile phones on campus.
A. if B.
where C. whether D.
that
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