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must have done
must
have
done
sth造句?
答:
must
have
done
过去一定做了某事,根据must的本意即可推敲出意思。The lights were out. They must have been asleep. 灯灭了,他们应该睡觉了。The ground is wet.It must have rained last night.地面很湿,昨晚一定是下过雨了。You must have seen him. 你想必曾经见过他了。The door droops ...
...to”还是“
must
have
done
”?为什么两种说法都有?
答:
had
to是
have
to的过去式,
must
本身没有时态变化,must have
done
是完成时态,里面时态与must 无关。
must
have
done
否定是 need not have done吗。???
答:
must
have
done
的否定形式是can't have done.用must来表示肯定、猜测;用can't 来表示动作不可能发生,如:- that must be wrong.- No, it can't be wrong.过去式举例:He walked past me without speaking. He can't have seen me.couldn't have...可以替代can't have......
must
have
been,must have been
done
,must have done三者的区别?_百度...
答:
must
have
been 一定是已经xxx(做某件事)must have been
done
一定是已经完成了 must have done一定完成 been指“被”,有been的句子就是被动句,某个动作被进行的意思。
should/could/
must
/might
have
done
用法?
答:
should
have
done
表示本应做而没做 could have done表示本可以做而没做
must
have done表示对过去事实的肯定判断,语气较重,即很肯定 might have done=may have done对过去事实的肯定猜测,语气较轻 eg.1.You should have swpet the floor.你本该扫地而没扫。(含责备语气)2.She could have ...
must
be must
have
done
区别
答:
must
be是对现在情况的肯定推测;而 must
have
done
是对过去发生的事情的有把握的推测
...一个是might
have
done
一个是
must
have done。求区分
答:
例1:She might
have
achieved greater progress, if you
had
given her more chances. 如果你多给她点机会,她可能已经取得更大的成绩。例2:—What
has
happened to George?乔治发生了什么事?—I don't know. He may have got lost.我不知道,他可能迷路了
must
have
done
表示对过去事情的...
should/ ought to
have
done
的含义是什么?
答:
过去将来完成时表示在过去看来将来某时会已经完成的动作.例如:She said she’d
have
finished her exams by then.她说那时她会已经考完试了.He knew he arrived she would have gone home.他知道他到时她会已经回家了 3.
must
have
done
的含义.“must have+过去分词”表示对过去的推测,意思是“...
could
have
done
sth 和
must
have done sth 的区别是什么
答:
如:He could
have
been very rich, but he cared for no money at all.
must
have
done
对过去的动作的推测。 如; You must have seen him yesterday. 你昨天一定看到他了。微笑——阳光的感言:would have done 本来要做完成的事却因其被他事而耽搁, 注意重点放在时间.He would have done ...
must
have
done
的反义疑问句提问方式?
答:
这个句子里如果没有时间状语的话,的确选择答案b,但是这里有明显的一般过去式的时间状语,所以我们就用一般过去式的助动词。
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