____great fun it is to talk with you!A.What B.what a 选什么,理由,

问题描述:

____great fun it is to talk with you!A.What B.what a 选什么,理由,

答案:what
fun是一个不带冠词的可数名词“一件愉快的事情”
再如:have fun=have a good /wonderful time 玩得高兴(痛快)