—They are arguing ________ each other ________ private affairs.

A. about；with B. with；about

C. with；with D. about；about

【答案】B

【解析】考查介词。句意：——那边出什么事了？——关于私事他们正互相争论。固定搭配：argue with sb. about sth.和某人争论某事，故选B。