题目内容
() 13. Unfortunately,when I dropped in,Professor Smith,so we only had time for a few words.
A. has just left B. had just left
C. just left D. was just leaving
13. D
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题目内容
() 13. Unfortunately,when I dropped in,Professor Smith,so we only had time for a few words.
A. has just left B. had just left
C. just left D. was just leaving