—Do you mind if I sit here, sir? — . Please sit down.
A. I’m sorry, but I do
B. Not at all
C. Of course
D. Thanks a lot
网友回答
A. I’m sorry, but I do
(答案→)B. Not at all
C. Of course
D. Thanks a lot
解析：I’m sorry, but I do抱歉，我介意；Not at all一点也不；Of course当然了；Thanks a lot多谢。句意：先生，你介意我坐在这儿吗？根据下文，请坐。可知选B，最符合语境。