— How far can you run without stopping?
— . I’ve never tried.
A. Don’t mention it.
B. That’s all right.
C. I have no idea.
D. Go ahead.
网友回答
A. Don’t mention it.
B. That’s all right.
(答案→)C. I have no idea.
D. Go ahead.
解析：考查交际用语：A. Don’t mention it不用谢，B. That’s all right.没关系，C. I have no idea.我不知道，D. Go ahead. 请便，句意：--你一下不停能走多远，--我不知道，我没有试过。选C。