问题描述: we didn't find our seats till the play had begun.till能换成before吗 1个回答 分类:英语 2014-10-06 问题解答: 我来补答 the play had begun,句子时态为过去完成时,过去完成时表示事情发生在we didn't find our seats之前,就是说这场比赛都已经开始了我们还没有找到座位. 展开全文阅读