... must have V-ed ...

结构︰

主语＋must have＋过去分词…

说明︰

此句型意为“一定曾经…”。本<句型>是对过去之事做肯定之推测，而“must＋原形<动词>”是对目前或将来之事做推测。

They must have read the article.
他们一定读过这篇文章。
You must have seen him before.
你以前一定见过他。
He must have forgotten my name.
他一定忘了我的名字。
He must have told you about it.
他一定告诉过你这件事。
Tom must have taken your dictionary by mistake.
汤姆一定是弄错了才拿了你的字典。
The poet must have been very young when he wrote this poem.
诗人写这首诗时一定非常年轻。
The rubbing must have worked.
搓揉一定是有效了。
Anyway, he must have eaten a lot because now he is fat.
无论如何，他一定吃了很多东西，因为现在他胖了。
You must have mistaken her for her sister.
你一定是把她误认为是她的姊妹了。
They must have left.
他们一定是离开了。

 

 

 


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