My parents will attend my graduation ceremony the morning of July 1st, 2016. A. on B. in C. at D. of...
2022-11-24 17:17:07 166次 2016届云南玉溪红塔区第一学区九年级第一次模拟考试英语卷（解析版） 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
My parents will attend my graduation ceremony the morning of July 1st, 2016.
A. on B. in C. at D. of
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