---- Let’s go for a walk in the garden.
----- , but I need to do the wash-up.
A. No, thank you
B. That’s right
C. Good idea
D. Not at all
网友回答
A. No, thank you
B. That’s right
(答案→)C. Good idea
D. Not at all
解析：本题上句表示建议，对于建议觉得可行，可用好主意来回答，good idea表示此意，故本题选C。