问题
选择题
―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
答案
C。
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。