I did not attend the lecture by jackson,I __ but I _ all this moming A would have ,washed B could have,been washing C would have ,been watching D could have,had washing

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Ididnotattendthelecturebyjackson,I____butI___allthismomingAwouldhave,washedBcouldhave,beenwashingCwo

I did not attend the lecture by jackson,I ____ but I ___ all this moming A would have ,washed B could have,been washing C would have ,been watching D could have,had washing
I did not attend the lecture by jackson,I ____ but I ___ all this moming
A would have ,washed B could have,been washing C would have ,been watching D could have,had washing

I did not attend the lecture by jackson,I ____ but I ___ all this moming A would have ,washed B could have,been washing C would have ,been watching D could have,had washing
这题选C
我没有出席杰克逊的演讲,我应该去但是我上午都在洗衣服.
表示与过去相反,用would/could/might/should +动词原形,后面all this moming强调一直都在干某事,而不是干了某事而不能去,所以be doing形式表示一直持续的事情.因为前面是虚拟语气,所以要用be的完成时,所以选C

选C。
翻译：我没有参加jackson的讲座，我原本要参加的但是今天早上我一直都在做卫生。
这是一题考虚拟语气的题目。对过去的时间进行虚拟的时候，虚拟语气构成为：would/could/should+have+现在分词，这一点四个选项都满足，都是可以的。但是but后面体现的是为什么我没去参加：因为我一直在做卫生。所以用完成进行时。...

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a，与过去相反的虚拟语气

个人认为答案应该是A，由于上午洗衣服本想去参加杰克逊的演讲而没去成，第一空是would have done是本想做没做成，could have done是拥有做某事的能力，此处不合适。be doing是某个时刻在干什么，一上午的话，时间段就用过去式即可。

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题目有打错吗？我想说说我的理解
首先watching（看）washing（洗，引申为洗衣服） could have和would have都是本应该做某事却没做的意思
题干中but I ___ all this moming 难道不是but I have___ all this moming吗？

如果题目是这样的话I did not attend the lecture by jackson，I ____ but I have___ all this moming
B could have, been washing C would have ,been watching D could have, had washing我觉得应该选B

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I did not attend the lecture by jackson,I ____ but I ___ all this moming A would have ,washed B could have,been washing C would have ,been watching D could have,had washing I did not save the day ah I attend the Juilliard School. she was s_____ to attend the meeting,but she did not turn up at last.首字母填空.空格中应当如何填?she was s_____ to attend the meeting,but she did not turn up at last. 动词填空If harry did not attend the conference last night,he______(have)too much work to do the party turned out to be a failure,i would rather_it.A not have attend B not to have attendC not attend D not to attend麻烦分析下! For _________ reasons,I will not be able to attend the meeting.(cebtain) I DID NOT PASS THE TEXT OF THE PERMIT. 将下列两个简单句合并成带定语从句的复合句1 the bridge has been rebuilt now.it was built in 1959.2.she is going to the town .i do not konw the town.3 he did not attend the meeting.he told me the reason.4 the train started at 4:50p.m I did not ask I could not hear the actors为什么用could不用did?为什么不用did not The party ended up with a failure.I would rather____the party.（a）A.not have attended B.not attend C.not to attend D.not to have attended The play was interesting.I did not enjoy it. I will not make the same mistakes that you did I will not make the asme mistakes that you did I will not make the same mistake that you did I will not make the same mistakes that you did I did not like the man.Do you know?