问题描述: Had known it earlier,I would not have gone back!在过去之前知道得早点 应该是过去完成时阿! 1个回答 分类:英语 2014-10-16 问题解答: 我来补答 原句是If I had known it earlier,I would not have gone back!(与过去事实相反,虚拟语气)这里从句与主句主语一致,省略了I和if,是正确的句式. 展开全文阅读