—I got promoted a few days ago—You did? !A. Thank youB. Never mindC. CongratulationsD. Do

问题补充：

—I got promoted a few days ago．

—You did? !

A. Thank you

B. Never mind

C. Congratulations

D. Don worry

答案：

A. Thank you

B. Never mind

(答案→)C. Congratulations

D. Don worry

解析：考查交际用语。A谢谢；B没关系；C祝贺；D不要担心；句意：—几天前我被提拔了。—真的？那真是祝贺你了！根据句意说明C正确。