__great time we're having today!__great fun it is!AHow a,What B What a,What CWhat,How DHow,How a

问题描述:

__great time we're having today!__great fun it is!AHow a,What B What a,What CWhat,How DHow,How a

(What a) great time we're having today!(What) great fun it is! (这里fun作名词)
选B
望采纳,谢谢!