I was about to go out _______ the telephone rang yesterday． A．when B．after C．before D．Since
2023-03-01 07:04:45 26次 2014-2015学年山东滕州第一中学高二上期末英语试卷（解析版） 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
I was about to go out _______ the telephone rang yesterday．
A．when B．after C．before D．Since
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