英语反义疑问句选择题1.The workers can't have finished their work yet,____?a.have they b.do they C.are they D.can they百度上搜索到一个：陈述部分为can't have done,依情况用did,has,have.神马叫“依情况”= =汗 为什么

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英语反义疑问句选择题1.The workers can't have finished their work yet,____?a.have they b.do they C.are they D.can they百度上搜索到一个：陈述部分为can't have done,依情况用did,has,have.神马叫“依情况”= =汗 为什么
英语反义疑问句选择题
1.The workers can't have finished their work yet,____?
a.have they b.do they C.are they D.can they
百度上搜索到一个：陈述部分为can't have done,依情况用did,has,have.
神马叫“依情况”= =汗
为什么选择A呢,D错在哪里~这边的have是使役动词吗?

英语反义疑问句选择题1.The workers can't have finished their work yet,____?a.have they b.do they C.are they D.can they百度上搜索到一个：陈述部分为can't have done,依情况用did,has,have.神马叫“依情况”= =汗 为什么
A
have 是助动词
can't have done...用以表示对已经发生的事作以否定推测

但前一句表推测的 may, must , can 时, 反意问句中不能用这些情态动词, 而应和情态动词后面的动词形式保持对应关系

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因为这里面的动词是have，而不是can
这句话的意思是：工人们还没有完成他们的工作，不是么？

have是的

亲，首先要理解问题的中文意思“这些工人不可能已经完成了他们的工作，难道他们已经完成了吗”。这样你就很好理解了，选A，强调的是是否已经完成这一个时态，不是D中强调的“CAN 能力”。

我给忘记了当时我们英语老师是怎么解释的了。
但是你写的用 have 或是did ， 所以这里无论如何都不能选择D ， 这里的did 应该是指 finished,即使使用也是 did they ? 而不是can they .

can't have done是对过去的猜测。
完成时的反义疑问，都是用have吧，have表示时态，应该是助动词

选择A。这是一种表示对过去情况猜测的反疑，应该和情态动词后的第一个动词保持一致。如：
It must have rained, hasn't it? He must be waiting for you, isn't he?
It can't have rained, has it?
但是如故含有过去的时间状语则用过去式did 型。
如：It must have...

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选择A。这是一种表示对过去情况猜测的反疑，应该和情态动词后的第一个动词保持一致。如：
It must have rained, hasn't it? He must be waiting for you, isn't he?
It can't have rained, has it?
但是如故含有过去的时间状语则用过去式did 型。
如：It must have rained last night, didn't it?

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a

can‘t在这里表示推测，“不可能”当情态动词在句子中表示推测的时候，反义疑问句跟情态动词后面的词保持一致，所以用have they？

您好！很高兴为您解答！
答案选A。本题考查反意疑问句，意思是“这些工人不可能已经完成了他们的工作，难道他们已经完成了吗”
希望可以帮到您，祝您成功！

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