近几年来，国家启动家电下乡工程，对购买下乡家电产品的农民按最终销售价格的13%给予财政贴。右面图1为2009年某市城乡居民每百户家庭家电拥有情况，图2为补贴前后农村家电需求量预计变化情况。综合图1和图2可以得出的正确经济信息是

①生产对消费具有决定作用  ②消费对生产有重要的反作用

③价格变动影响消费需求  ④农村消费市场潜力巨大

A．①②③

B．②③④

C．①②④

D．①③④

— Tom is never late for work. Why is he absent today?

— Something _____ to him. [ ]

A. must happen                                    

B. should have happened

C. could have happened                              

D. must have happened