Yesterday I witnessed car hit a tree and driver was killed.A. A; aB. The; theC. A; theD.

问题补充：

Yesterday I witnessed car hit a tree and driver was killed.

A. A; a

B. The; the

C. A; the

D. The; a

答案：

A. A; a

B. The; the

(答案→)C. A; the

D. The; a

解析：句意：昨天，我看到了一辆汽车撞到了一棵树上，司机死亡了。第一个空，是泛指“一辆汽车”，故用不定冠词a；第二个空，是特指“这个司机”，故用定冠词the，选C。