【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。