问题补充：
- Let’s go for a walk in the garden.
- , but I need to do the washing-up.
A. No, thank you
B. That’s right
C. Good idea
D. Not at all
答案：
A. No, thank you
B. That’s right
(答案→)C. Good idea
D. Not at all
解析：通过转折连词but，说明前面应为肯定。同意对方的建议，应回答Great. 或者Good idea.
