今天做到一个句子里面有两个选项有疑问,一个是might have done一个是must have done.求区分

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今天做到一个句子里面有两个选项有疑问,一个是might have done一个是must have done.求区分
比如说分别适合哪种语境,有具体句子更好啦!高三党没时间赚分,

might have done 表示对过去事情的推测,might与may意思相同,但可能性更小.多用于虚拟语气结构中,May用于肯定句中.
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
表示对过去事情的肯定推测,译成“一定做过某事”,该结构只用于肯定句.
例：It must have rained last night,for the ground is wet.昨晚一定下雨了,因为地面还是湿的.
有疑问可以继续追问哦,祝您学习更上一层楼!

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