Does your friend English?A. does well inB. do good atC. do well inD. did well in

问题补充：

Does your friend English?

A. does well in

B. do good at

C. do well in

D. did well in

答案：

A. does well in

B. do good at

(答案→)C. do well in

D. did well in

解析：be good at 或do well in，本题在一般疑问句中，要用动词原形。故选C