A small plane crashed into a hillside five miles east of the city all four people on boa

问题补充：

A small plane crashed into a hillside five miles east of the city, all four people on board.

A. killed

B. killing

C. kills

D. to kill

答案：

A. killed

(答案→)B. killing

C. kills

D. to kill

解析：考查非谓语动词。句意“一架小型飞机撞上了城市以东五公里处一座山的山腰，杀死了机上的四个人。”逻辑主语和kill之间是主谓关系，故用现在分词，来表示自然而然的结果。故选B。