单选题
Mike: You look a bit dull today.______? Susan: I have some bad news. I got fired. Mike: Oh, no! You must be kidding. How come? Susan: It's a long story.
【正确答案】
A
【答案解析】解析：What's up?是What's wrong? What's the matter?的意思；What's on?“今天有什 么节目或演出”的意思，询问有什么娱乐活动；What then?用以询问后果或接着发生的事，表达“那 会怎样?”的意思；What of it?用法等同于So what?表达“那又怎样呢?那又有什么关系呢?”的意 思，如：A：He doesn't like you．B：What of it?