(2013·山东省胶东示范学校二模)—I forgot to bring my pen for the lecture.
— . I have got a spare one.
A. Go ahead
B. You're wele
C. Not to worry
D. Don't mention it
网友回答
A. Go ahead
B. You're wele
(答案→)C. Not to worry
D. Don't mention it
解析：选C 考查交际用语。由答语中的“I have got a spare one.”可知，答话人应是让对方不要担心。故C项Not to worry“没关系(用于指某事不重要)”符合语境。