―Did you meet Professor Johnson?
―Yes, but when I arrived, he , so we only had time for a few words.
A. had just left
B. has just left
C. was just leaving
D. just left
网友回答
A. had just left
B. has just left
(答案→)C. was just leaving
D. just left
解析：从下文“我们只交谈了几句话”来看，教授正要离开。这里使用leave的进行时态表示将要发生的动作。