The boss the worker how to do it ,or the accident couldn't have happened.A.can't have toldB.ought to tellC.could have toldD.mustn't have told请问这是虚拟语气吗?D为什么不可以?

来源:学生作业帮助网 编辑:作业帮 时间:2024/04/29 20:20:13
The boss the worker how to do it ,or the accident couldn't have happened.A.can't have toldB.ought to tellC.could have toldD.mustn't have told请问这是虚拟语气吗?D为什么不可以?

The boss the worker how to do it ,or the accident couldn't have happened.A.can't have toldB.ought to tellC.could have toldD.mustn't have told请问这是虚拟语气吗?D为什么不可以?
The boss the worker how to do it ,or the accident couldn't have happened.
A.can't have told
B.ought to tell
C.could have told
D.mustn't have told
请问这是虚拟语气吗?D为什么不可以?

The boss the worker how to do it ,or the accident couldn't have happened.A.can't have toldB.ought to tellC.could have toldD.mustn't have told请问这是虚拟语气吗?D为什么不可以?
老板肯定没有告诉工人该怎么做,不然事故绝对不会发生.D,mustn‘t是指一定不能,比如说You mustn't aim too high,你不可好高骛远.can’t可以指“不能”、“没有”,但是mustn‘t却没有“没有”的意思

是虚拟语气。
mustn't是“不可以、不允许”的意思。
A项意为不可能已经做某事。
希望帮到你!

mustn't 表示“禁止,不允许”can't表示“肯定没”

貌似没有must not 这说法吧。。。must not 用can not 表示