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
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
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。