has been done 与had been done要怎么用啊
来源:学生作业帮 编辑:作业帮 分类:英语作业 时间:2024/10/05 21:58:40
has been done 与had been done要怎么用啊
has been done 与had been done要怎么用啊?
has been done 是现在完成时的被动语态.
had been done是过去完成时的被动语态.过去完成时的概念是【相对过去的某个时间更早的】【过去】
如:
The work has been done.这项工作做完了/完成了.
The work had been done before you came.这项工作【在你来之前】做完了/完成了.
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has been done 是现在完成时的被动语态.
had been done是过去完成时的被动语态.过去完成时的概念是【相对过去的某个时间更早的】【过去】
如:
The work has been done.这项工作做完了/完成了.
The work had been done before you came.这项工作【在你来之前】做完了/完成了.
如果我的回答对你有所帮助,请点击本页面中的“选为满意回答”按钮,
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