We are to hold the sports meeting next weekend, ________ the air quality becomes better. A. which B....
2022-05-31 21:31:18 48次 天津市河西区2019-2020学年高三上学期期中英语试卷 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
We are to hold the sports meeting next weekend, ________ the air quality becomes better.
A. which B. when
C. where D. while
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