________ May 5th, 2017, the C919 took off successfully for the first time at Shanghai Pudong Interna...
2022-11-04 12:10:56 203次 2017年初中毕业升学考试(重庆市)英语（A卷） 单选题 反馈错误 加入收藏 正确率 : 100%
题目内容：
________ May 5th, 2017, the C919 took off successfully for the first time at Shanghai Pudong International Airport.
A. On B. In C. At D. Of
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