Beijing is one of the _________________ in the world today . A. busiest city B. busy cities C. busy ...
2023-02-12 18:44:19 195次 2013-2014学年辽宁省丹东市九年级上学期期中考试英语试卷（解析版） 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
Beijing is one of the _________________ in the world
today .
A. busiest city B. busy cities
C. busy city D. busiest cities
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