问题
选择题
-------Mrs. Green looks very worried. _______
-------The teacher called her and said her son was ill.
A．What’s up?
B．What’s on?
C．So what?
D．Why not?
答案
答案：A
题目分析：句意：上文，格林夫人看起来非常担心。出什么事了？下文，老师给她打电话说她儿子生病了。What’s up? 出什么事了；What’s on在干什么；So what?那又怎样；Why not?为什么不，所以选A。