During the 19th CPC National Congress , people in Beijing could see red flags stand out brightly ___...
2022-06-21 12:13:04 165次 2018年河南省郑州市中考三模英语试卷 单选题 反馈错误 加入收藏 正确率 : 100%
题目内容：
During the 19th CPC National Congress , people in Beijing could see red flags stand out brightly _______ the blue sky .
A.for B.in C.to D.against
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