—I heard you won the first prize in the National English Speech Contest Congratulations！—

问题补充：

—I heard you won the first prize in the National English Speech Contest, Congratulations！

—.

A. It isn’t worth mentioning

B. I’m really proud of it

C. Just a prize

D. Thank you

答案：

A. It isn’t worth mentioning

B. I’m really proud of it

C. Just a prize

(答案→)D. Thank you

解析：句意：--我听说你获得全国英语演讲比赛的一等奖，祝贺啊！--谢谢。回答祝贺的用语就是Thank you,符合英语的习惯。选D。

考点: 考查日常交际用语的用法。