问题补充：
---Would you mind basketball here?
---Sorry. We’ll go and play it on the playground.
A. playing
B. not playing
C. play
D. to play
答案：
A. playing
(答案→)B. not playing
C. play
D. to play
解析：句意：你介意不在这里打篮球吗？对不起，我们将去操场打球。mind doing sth ,介意做某事。否定形式mind not doing sth。根据句意，故选B。
