----Many happy returns of the day! ---- .
A. The same to you
B. Me, too
C. Thank you
D. Don’t be polite
网友回答
A. The same to you
B. Me, too
(答案→)C. Thank you
D. Don’t be polite
解析：考查交际用语。句意：祝你寿比南山！谢谢。Many happy returns of the day! 生日等每年固定要庆祝的日子所用的贺词。所以选C。