问题描述: 改被动.Did they build a bridge here a year ago. 1个回答 分类:综合 2014-09-26 问题解答: 我来补答 ther r fucking idiot 再问: ? 再答: Did a bridge be built by them here a year ago 再答: 不确定再问: 第一个词要用Did还是其他? 再答: did就可以 展开全文阅读