题目内容
【题目】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】A
【解析】句意:不幸的是,当我拜访史密斯博士时,他正要离开,因此我们只说了几句话。根据句意可知动词leave用进行时表示将来,且根据时间状语从句可知应使用过去时态,故应使用过去进行时。
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