Some 25 000 people were reported in the ever recorded worst earthquake in Iran which occu

问题补充：

Some 25,000 people were reported in the ever recorded worst

earthquake in Iran which occurred late this month.

A. were killed

B. to be killed

C. killing

D. to have been killed

答案：

A. were killed

B. to be killed

C. killing

(答案→)D. to have been killed

解析：当不定式所表示的动作先于谓语动词所表示的动作时，不定式用完成时，且kill

与逻辑主语people之间是被动关系，故选D