to be done 和having been done的用法

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to be done 和having been done的用法
to be done 和having been done的用法

to be done 和having been done的用法
to be done是不定式一般式的被动语态、如A lot needs to be done.有一系列工作要做.
having been done是现在分词完成式having done的被动态.表示该动作发生在主句动作之前已经做完.如:Having been cleaned ,the classroom is tidy now.

to be done指的是要去做某事(还未做)
have been done完成式,指的是已经做了某事

用“to be done”,强调该动作是被执行。
He was said to be sent to abroad. 据说他要被送出国。
用“to have done”或“to have been done”,表该动作已完成,如:
I\'m sorry to have kept you so long. 对不起让你久等了。

to be done 和having been done的用法 My work ___,I went home.A.had been done B.done C.having done D.to be done Having done和having been done能不能做宾语补足语The survey____in our school last month shows that.A.conductedB.having been conductedC.conductingD.to be conducted网上看就说可以作宾补 那这题为什么不选B? homework______on time will lead to better grades.a.be done b.done c.having done d.to have been done请问该如何选择,能不能选D? Homework ( )on time will lead to better gardes.A.done B.be done C.having done D.to have been done要说明原因哦。 With his work_____,the student went out to play basketball.A.to be done B.having been done my work_,i went home.A.had been done B.done C.having done D.to be done选择哪一个?为什么?为什么C不对? 怎么区分谓语动词,to do doing done 和to be doing to be done to have done 和beingdlonehaving done having been done?越具体越好 有分的=3=谢谢你们 be done,have done ,having done和done之间的去别做题时怎么分别他们啊 怎么分辨谓语动词和非谓语动词啊?比如,has caused /to be done /having been done/啊什么的? having done 和 to have done的区别having done 和 to have done 有什么区别? there is so much work_____today would you be kind enough to lend me a hand?A,having done B,to be done C,being done D,will be done为什么选B而不选D. have been done 和 to be done having done和to have done区别?我们老师说regret to have done,forget having done都表示完成. After only two years in this market,our US sales ______ those in Japan.A.have overtaken B.have oHomework ________ on time will lead to better grades.A.done B.be done C.having done D.having been done to have done,to be done,to have been done,having done在用法上有什么区别? 关于英语非谓语问题非谓语doing having done to do to have done to be doing being done have been done to be done to have been doing done doing,having done,to do,to have done ,to be doing,being done,have been done,to be done,to have been doin 一个简单的英语填空题Homework _ on time will lead to better grades.A.done B.be done C.having done D.to have been done 最好能说说是什么原因,