—Why not ask your teacher for help?—.A. You’re welcomeB. It’s nothingC. Good ideaD. It doe

问题补充：

—Why not ask your teacher for help?

—.

A. You’re welcome

B. It’s nothing

C. Good idea

D. It doesn’t matter

答案：

A. You’re welcome

B. It’s nothing

(答案→)C. Good idea

D. It doesn’t matter

解析：why not+动词原形意思是问什么不…表示建议，赞同时常用good idea等来回答。