— How are you?— Fine thank you. ?A. TooB. How do you doC. And youD. How old are you

问题补充：

— How are you?

— Fine, thank you. ?

A. Too

B. How do you do

C. And you

D. How old are you

答案：

A. Too

B. How do you do

(答案→)C. And you

D. How old are you

解析：根据题干，本句的意思是“你好吗？”“我很好，谢谢。你呢？”A是也的意思，故应排除；B是“你好”的意思；D表示“你多大了？”都不符合题意。所以本题选C。