Unfortunately stone hit him on head and he got injured.A. the; aB. a; 不填C. a; theD. the

问题补充：

Unfortunately, stone hit him on head and he got injured.

A. the; a

B. a; 不填

C. a; the

D. the ; the

答案：

A. the; a

B. a; 不填

(答案→)C. a; the

D. the ; the

解析：考查冠词。石头是可数名词，这里是泛指，用a;身体部位前面用定冠词the;句意：不幸的是，一块石头击中了他的头部，他受伤了。

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