Question

----I came to your office yesterday morning, but nobody was in.
----Oh, we__________ a meeting in the meeting room.

A．have had

B．had

C．were having

D．had had

Answer 1

C

考察时态。句意：我昨天上午来你办公室了，但是里面没有人。——我，我们正在会议室开会。结合语境可知下文描述的是过去某时正在进行的动作，故用过去进行时态。选Ｃ。