—Are you at dancing? —Yes. I can dance really .A. good; goodB. well; wellC. good; wellD.

问题补充：

—Are you at dancing?

—Yes. I can dance really .

A. good; good

B. well; well

C. good; well

D. well; good

答案：

A. good; good

B. well; well

(答案→)C. good; well

D. well; good

解析：句意：你擅长跳舞吗？是的，我能跳的很好。be good at 擅长……，good,形容词，修饰名词，或做表语，well,副词，修饰动词。故选C。