--Sorry, I made a mistake again.
--- .Practice more and you’ll succeed.
A. Never mind
B. Certainly not
C. Not at all
D. Don’t mention it
网友回答
(答案→)A. Never mind
B. Certainly not
C. Not at all
D. Don’t mention it
解析：考查交际用语。A没关系（回答对方的道歉）；B当然不；C一点也不；D不用谢（回答对方的感谢）；句意：—对不起，我又犯了一个错。—没关系，多练习，你会成功的。根据句意说明A正确。