it was thirty years until they were able to reunite 能代替 it was thirty years before they were吗
问题描述：
it was thirty years until they were able to reunite 能代替 it was thirty years before they were吗
答
可以
答
好像怪怪的，我记得一段时间加before后面要用完成时态吧
答
it be +段时间句型通常用since before具体为it+was/will be +段时间+before具体为it+is/has been+段时间+sinceit was thirty years until they were able to reunite此句应把until改成since至于它能否代替第二句不好...