【题目】I _____up my mind what I was going to say in the seminar, but it was cancelled.
A. have made B. had made
C. was making D. would make
在线课程【答案】B
【解析】考查时态。句意：我已经决定了在研讨会上要说什么，但是，研讨会被取消了。“make up one’s mind”这个行为发生在研讨会被取消之前，根据“it was cancelled”可知，研讨会被取消是过去的事情，那么，make up one’s mind是发生在过去某个动作之前的行为，故该空应用过去完成时态。B选项正确。