问题描述: 以when开头的问句有哪些呢! 1个回答 分类: 英语 2014-10-08 问题解答: 我来补答 When do you + 动词原形?When did you + 动词原形?when will you + 动词原形?when have you + 过去分词?When are you + 现在分词?when were you + 现在分词?when had you + 过去分词?... 展开全文阅读