The boy leg was injured in the football match was only 11 years old.A. whichB. whoseC.

问题补充：

The boy, leg was injured in the football match, was only 11 years old.

A. which

B. whose

C. who

D. whom

答案：

A. which

(答案→)B. whose

C. who

D. whom

解析：考察定语从句指示代词用法，根据先行词the boy和leg的从属关系，选B。谁的。这个在足球比赛中腿受伤的男孩只有11岁。