It was the most boring report we had ever had. It four hours.A. endedB. finishedC. wasD.

问题补充：

It was the most boring report we had ever had. It four hours.

A. ended

B. finished

C. was

D. lasted

答案：

A. ended

B. finished

C. was

(答案→)D. lasted

解析：本句意是：它（这个报告）待续是四个小时。