—What about going for a walk?—.A. Go ahead please B. Me tooC. Help yourselfD. Good idea

问题补充：

—What about going for a walk?

—.

A. Go ahead, please

B. Me, too

C. Help yourself

D. Good idea

答案：

A. Go ahead, please

B. Me, too

C. Help yourself

(答案→)D. Good idea

解析：句意：--去散步怎么样？--好主意。Go ahead, please可以，这是用于鼓励某人的做法； Me, too 我也一样； Help yourself 请自便； Good idea同意某人的提议。根据句意故选D。