A:today or tomorrow B:what are you talking about?C:we are talking about ( ) to give a talk on WTO

题目

A:today or tomorrow B:what are you talking about?C:we are talking about ( ) to give a talk on WTO
a.how b.where c.when d.what

答案

C
根据句意“今天还是明天”知道谈论的是作报告的时间.