You cannot take back your words _________ they are out of your mouth. A. beforeB. whetherC. onceD. w...
2022-11-20 15:12:05 176次 2015届北京市高二下学期期中考试英语卷（解析版） 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
You cannot take back your words _________ they are out of your mouth.
A. beforeB. whetherC. onceD. while
本题链接：
