问题
选择题
—Mind your steps as you go, or you'll fall down on to the wet ground.
—___________.[ ]
A. Not at all
B. Thank you
C. I don't
D. Don't mention it
答案
答案：B
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—Mind your steps as you go, or you'll fall down on to the wet ground.
—___________.[ ]
A. Not at all
B. Thank you
C. I don't
D. Don't mention it
答案：B