Do you know our school life could be dangerous if we are not

问题描述:

Do you know our school life could be dangerous if we are not careful enough.中为什么用could?
虚拟语气?表示委婉,都不像啊
1个回答 分类:英语 2014-09-18

问题解答:

我来补答
此处表情态动词推测~
must、can、could may might 都表推测,其表推测的可能性由左至右依次降低.could表示某事可能发生或者可能是事实.
 
 
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