Unfortunately, when I dropped in, Doctor Li for Qinghai to join in the fight against the earthquake, so we only had time for a few words A. just left B. has just left C. is just leaving D. was just le 题目和参考答案——青夏教育精英家教网—

题目内容

Unfortunately, when I dropped in, Doctor Li _____ for Qinghai to join in the fight against the earthquake, so we only had time for a few words

A. just left B. has just left

C. is just leaving D. was just leaving

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