-- We could invite John and Barara to the Friday night party.
--Yes, ? I’ll give them a call right now.
A. why not
B. what for
C. why
D. what
网友回答
(答案→)A. why not
B. what for
C. why
D. what
解析：
这题考查交际用语：why not为什么不？what for为什么？句意是：我们可以邀请约翰和芭芭拉来周五的晚会，--行啊，我现在就给他们打电话。选A。