---- ? You look really down.
---- I’m so tired of my job. There are endless problems to deal with.
A. Why bother
B. So what
C. What’s up
D. Why not
网友回答
A. Why bother
B. So what
(答案→)C. What’s up
D. Why not
解析：A. Why bother为什么费事？B. So what 那又怎样？C. What’s up怎么了，D. Why not为什么不？好啊，句意：--怎么了？你看起来很沮丧。--我厌倦于我的工作了。有无止境的问题要解决。所以选C。