I hear that my brother won the singing competition last Friday , but I’m not sure _______ that. A. o...
2022-11-16 13:07:10 104次 2016-2017学年辽宁辽阳九中八年级上第三次月考（12月）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：
I hear that my brother won the singing competition last Friday , but I’m not sure _______ that.
A. over B. on C. about D. in
本题链接：
