has been done是什么意思

它与had been done有什么区别

第1个回答 2013-11-25

has been done是现在完成时现在已完成，had been done是过去完成时过去已完成。本回答被网友采纳

第2个回答 2013-11-25

Tom: Hi, Mary, how about your homework? Thursday is the due day.
Mary: Hi, Tom, I have finished them all. What about you?
..........
Lily: Tom, can I ask you some questions about the physics paper? I can't work them out.
Tom: Oh, I'm afraid I can't help you. I haven't done it yet. You can ask Mary for some help. She just told me she had finished all the homework.

第3个回答 2013-11-25

已完成

第4个回答 2013-11-25

已经做了

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has been done什么意思has been done的翻译是什么?答：- "Has been done"：表示某个动作或事情已经完成或已经被做过。- "Has been doing"：表示某个动作或事情已经开始并且正在进行中。例句：- The report has been done. (报告已经完成。)- She has been doing her homework for hours. (她已经做作业做了几个小时了。)2. 用法区别：- "Has bee...

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has been done是什么意思?答：首先我们来看下has been done和has been doing的大致意思：has been done：词性为短语，has been done是have/has been done的过去完成时形式，其中have/has是助动词，been是be动词的过去分词形式，done是do动词的过去分词形式。has been doing：词性为短语，has been doing是have/has been doing的过去...

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