I'm amazed that she married him so soon.She ----him very well.Amustn't have knownBcan't have got to knowC didn't have to know Cneedn't have known
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![I'm amazed that she married him so soon.She ----him very well.Amustn't have knownBcan't have got to knowC didn't have to know Cneedn't have known](/uploads/image/z/14004907-43-7.jpg?t=I%27m+amazed+that+she+married+him+so+soon.She+----him+very+well.Amustn%27t+have+knownBcan%27t+have+got+to+knowC+didn%27t+have+to+know+Cneedn%27t+have+known)
I'm amazed that she married him so soon.She ----him very well.Amustn't have knownBcan't have got to knowC didn't have to know Cneedn't have known
I'm amazed that she married him so soon.She ----him very well.Amustn't have known
Bcan't have got to knowC didn't have to know Cneedn't have known
I'm amazed that she married him so soon.She ----him very well.Amustn't have knownBcan't have got to knowC didn't have to know Cneedn't have known
B
不可能对他很了解
对“过去已发生事情”的口气较强的否定推测can't/couldn't have done.意为:根本不可能...
mustn't have done (不存在此用法)mustn have done.(肯定已.)
needn't have done...没必要已.
选 B
我很惊讶她这么快就和他结婚了,她不可能对他很了解。
这里表示否定的推测,must 表示推测只用于肯定句。表示否定的推测不可能用can't .
C,表示没必要了解,D表示本没有必要了解,与句意不吻合。
B Can't have got to know=can't have known 不可能已经了解 、
从前面的so soon判断,时间比较短,所以确定的推测 不可能做过某事 即must的否定形式 can't
对过去发生事情的推测,用情态动词+have done 的形式