问题描述: They did pass their exams 为什么要加个did 不可以这样说嘛?They pass their exams 1个回答 分类:综合 2014-11-18 问题解答: 我来补答 加did可以表示强调,=indeed 再问: 可以这样说嘛They pass their exams 再答: ok 展开全文阅读