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---- You’ve done this before ,right?

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---- You’ve done this before ,right?
----- No,but if we follow the directions,we ___ have any trouble.
A.shouldn’t   B.couldn’t      答案A,
You ______scold such a pupil who always keeps silent so seriously that you ____hurt him.
A.mustn't may  B.can't must  答案A,
There is no light on----they ____ be at home.
A.can't B.mustn't
There were already five people in the car,but they managed to take me as well.
It ____ a comfortable jouney.
A.mustn't have been   B.couldn't have been
---- You’ve done this before ,right?
考情态动词表推测.should表推测时表示按照常理来说有可能,应该…….
shouldn't have done本来不应该.couldn' have done表对过去的否定推测.“不可能……”
语境是,如果你按说明书来做的话,你本不应该有任何问题的,事实上他回答的No（有问题）
mustn't比can't的语气更重一点,表示“不准”
第一空用哪个并没有太大关系.关键是第二空,是你有“可能”伤害他,而不是一定会.
mustn't表示“禁止,不准”
can't表示“不可能”,是一种否定推测.他们一定不在家.
同第3一样,mustn't不能表示否定推测,没有mustn't have done这种形式.
表示对过去的否定推测应该用can't/couldn't have done.
---- You’ve done this before ,right? If you've found your Mr.Right,you've done major right things It won't be long before you regret what you've done. look what you've done Well...You've done well you've got it right 英语语法：Considering you havn't done this before,I will sent you -- You’ve done very well this time.-- It’s really kind _____ can i call you right back?I've got to take this call 这些句子什麽意 I've.never.felt.this.way.about.anyone.before!…You.don't.know Given the circumstances,you've done well look what you ve done的中文歌词