芜湖一日游最佳路线:一道英语选择题，

来源：百度文库 编辑：中科新闻网 时间：2024/05/07 19:02:57
A man escaped from the prison last night. It was a long time ___ the guards discovered what had happened.
A. before
B. since
C. until
D. when
请指点！

A
很长时间之后 警卫才发现发生了什么

选D吧

A

选A

A

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