-- We could invite John and Barara to the Friday night party.--Yes ? I’ll give them a cal

问题补充：

-- 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

答案：

(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。