Cart:HiMaryareyoufreetonight?Mary:_________Cart?Ca

Cart: Hi,Mary, are you free tonight?

Mary: _________. Cart?

Cart: Shall we have a game of chess?

A． What about it

B． What of it

C． What for

D． What is it

正确答案：C
根据交际语境选项C(要做什么?)最符合表达习惯．选项ABD都不正确