问题描述： Two years has _____ _____(流逝) before we knew it. 1个回答 分类：英语 2014-10-06 问题解答： 我来补答 Two years had (gone by )(流逝) before we knew it.我认为has 应该是had （ 即过去完成时,动作发生在KNEW 前）加油!不明白再问! 展开全文阅读
