题干
— Thank you for helping my sister with her English, Mr. Li.
— ___________.
A：It's very kind of you.
B：Never mind.
C：It's a pleasure.
答案(点此获取答案解析）
C
— Thank you for helping my sister with her English, Mr. Li.
— ___________.
A：It's very kind of you.
B：Never mind.
C：It's a pleasure.
