问题
选择题
Unluckily, when I dropped in , Dr. Smith ____, so we only had time for a few words.
A．was just leaving
B．has just left
C．had just left
D．just left
答案
答案：A
由so we only had time for a few words可知：当我们到访时，Dr. Smith. 正要离开，was leaving过去进行时表将来。故选A。