— David has been in high spirits these days?— He should win the first prize in the compos

问题补充：

— David has been in high spirits these days?

— He should win the first prize in the composition test.

A. How come!

B. How is it?

C. Guess what?

D. No wonder!

答案：

A. How come!

B. How is it?

(答案→)C. Guess what?

D. No wonder!

解析：考查交际用语。A为什么？B情况怎么样？C猜猜发生什么事情了！D难怪!句意：—David这段时间的情绪很高啊！—猜猜发生什么事情了！在作文比赛中他竟然得了第一名。根据句意说明C正确。