问题描述： has been done,had been done 的区别是什么? 1个回答 分类：英语 2014-12-06 问题解答： 我来补答 1、首先要区分has been done与 had been done的区别：have/has been done 是现在完成时的被动语态.表示某事被做,.如：The problems have been 展开全文阅读
