When we hurried to the meeting room the meeting .A. had begunB. had been onC. has begunD.

问题补充：

When we hurried to the meeting room, the meeting .

A. had begun

B. had been on

C. has begun

D. has been on

答案：

(答案→)A. had begun

B. had been on

C. has begun

D. has been on

解析：句意：当我们赶到会议室的时候会议已经开始了。本句中会议开始的动作发生在我们到达会议室之前，所以表示过去的过去，用过去完成时，故选A