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 |
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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 |