Could you please help clean the window?A.Sure,go ahead.B.Sorry,but I have to meet my uncle.哪个对?

问题描述:

Could you please help clean the window?A.Sure,go ahead.B.Sorry,but I have to meet my uncle.哪个对?
Sorry,but I.这里的but是什么用法啊!谢谢各位了!

选A.
当然,开始吧
B选项中but表示转折关系,但是...