初三的一道英语题
Did you enjoy yourself at the party?
Yes,I've never been to ______one before.
A.a more excitingB.the mostexcitedC.a more excited D.themostexciting
老师说选择A.我一点都不理解,为什么啊?什么意思啊?麻烦各位指导一下,先谢谢了!