问题补充:
---Don’t climb the ladder. It’s broken.
---
A. Why not?
B. Don’t mention it.
C. OK. Thank you.
D. So what?
答案:
A. Why not?
B. Don’t mention it.
(答案→)C. OK. Thank you.
D. So what?
解析:根据语境, 对别人的提醒或警告表示感谢, 故C项最适合。A:为什么不?用来题提建议:B;不用谢;D:那又怎么样?用来表示认为某事不重要。