must have been doing是什么时态
回答
爱扬教育
2022-03-16
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例句：
Your trip must have been fun!
你这次旅行一定很开心吧！
The street must have been on a slope.
那条街一定是一直在一个斜坡上。
扩展资料
He must have been a stranger to the town.
他当时一定是刚到这个镇子。
His sudden reappearance must have been a shock.
他的突然再次露面一定引起了震动。
We must have been burgled while we were asleep.
我们睡着时一定让贼入室偷了。
I must have been blind not to realize the danger we were in.
当时我一定是眼瞎了，竟然没有意识到我们所处的危险。
Judging by the company he kept, Mark must have been a wealthy man.
根据马克所交往的人来判断，他一定是位富翁。