问题描述: She said she had been to Dalian a year before如果把before换成ago, 1个回答 分类:英语 2014-10-25 问题解答: 我来补答 不可以 如果换成ago 则必须用过去时态She said she went to Dalian a year ago.如还有疑问,欢迎可以进入乐知各级别英语外教课免费旁听.希望能帮到您 展开全文阅读