had been done的意思|示意
过去完成时的被动语态
had been done的网络常见释义
过去完成时 ... 7. 过去进行时 (was/were being done) ： 8. 过去完成时 (had been done) ： 9. 带情态动词的被动语态 (can be done) ： ...
去完成时 过去完成时(had been done)： The work had been finished before dark. 9.
被动形式 【解析】本题考查book作为动词的用法和过去完成时被动形式（had been done）。book预定（房间、票等）,这里票与预定是被动关系。
过去完成 ... 过去进行 was/were being done 过去将来 would be done 过去完成 had been done ...
had been done相关短语
1、 Another killing had been done 又一场杀戮展开 ; 又一场屠戮开展
2、 had done had been done 过去完成体
3、 I had been done 过去完成时
had been done相关例句
Global emissions would still be almost 10% lower than if nothing had been done.
全球碳排放量仍然会比什么都不做的情况下少几乎10%。
But he denied that a deal had been done; early in the negotiations, he said there could be no deal without Mr Tsvangirai.
但就在谈判的早些时候，他否认达成这样一项协议，声称没有茨万吉拉伊参与不会有什么协议产生。
Before 1815 manufacturing in the United States had been done in homes or shops by skilled artisans.
1815年以前，美国的产品制造是由熟练的工匠们在家里或商店里完成的。
Farm laborers said that they always woke up to find that work had been done overnight.
农场劳动者们说，他们常常醒来时发现工作已经在夜间被人做完了。
Our waste recycling project involving a lot of investigation and paperwork had been done by the end of last term.
我们的废物回收项目已经在上学期末完成了，其中包含许多调查研究和书面工作。
She knew it would be difficult to undo the damage that had been done.
她知道难以挽回已造成的损失。