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hAD BEEn DonE

had been done 表示过去的过去,是过去完成的被动态时。(当你想说发生在过去的两件事时,就要分清谁先谁后。先发生的用过去完成时,后发生的要用过去时)。 如:The rooms had been cleaned when I came. 我来的时候,房间已经被打扫了。 have/...

have\has done 叫现在完成时。表示动作发生在过去,对现在有一定的影响。通常与时间段连用。 如:I have finished my homework. / It has rained for three days. had done 是过去完成时。表示动作发生在过去的过去。通常句中有过去时间状语作参...

was done was done是一般过去时的被动语态was/were done之一。英语分为主要的八大时态,两大语态。其中,一般过去时即谓语动词为过去式,表示一个过去发生的动作,而被动语态是表示主语被怎样,其中主语是动作的被执行者即动作承受着。二者匹配...

had been done过去某个时间之前已经被做、被完成 had been doing过去某个时间之前已经在做或者继续在做 had be done是错的。时态和语态多不对。 had being done也是错误的。时态和语态都不对。 had纯粹的过去动作。

had been done 过去完成时 过去某个时间之前就已经完成 例如,All of my execises have been done when you asked me yesterday. 昨天你问我的时候,我的作业已经做完了。 have been done现在完成时 到现在为止已经完成 例如,All of my execise...

have done是现在完成时的主动语态,表示从过去某个时间点一直持续到现在一直在做某一件事; have been done 是现在完成时的被动语态,表示从过去某个时间点到现在一直被做某事。

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 solved.这些问题已经被解决了。 had been done 则是过去的过去,是过去完成的被动态时。(当你...

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 solved.这些问题已经被解决了。 had been done 则是过去的过去,是过去完成的被动态时...

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 solved.这些问题已经被解决了。 had been done 则是过去的过去,是过去完成的被动态时。(当你...

这两个结构都是现在完成时,have been done为被动语态,have done为主动语态。 现在完成时表示过去发生的动作或状态对现在的影响或产生的结果,跨在两个时间之上,一是过去,二是现在。 The train for Kaohsiung has already arrived. 前往高雄...

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