She likes playing guitar while her brother is fond of playing football.A. the; theB. th

问题补充：

She likes playing guitar while her brother is fond of playing football.

A. the; the

B. the; a

C. /; the

D. the; /

答案：

A. the; the

B. the; a

C. /; the

(答案→)D. the; /

解析：乐器名词前必须加冠词the；球类名词前不能加冠词。