—Would you mind turning down the music?—.A. Yes I wouldB. No of courseC. No not at allD

问题补充：

—Would you mind turning down the music?

—.

A. Yes, I would

B. No, of course

C. No, not at all

D. Yes, of course

答案：

A. Yes, I would

B. No, of course

(答案→)C. No, not at all

D. Yes, of course

解析：Yes, I would是的,我要; No, of course前后矛盾,无此说法;No, not at all不,一点也不; Yes, of course前后都表示肯定,无此说法. 句意:你介意我调低音乐吗?结合语境可知选C为最佳答案.