题目内容
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 |
D
从“我们只谈了几句话”可知,当我们去拜访时,Professor Smith“正要”离开了,D是过去进行时表示过去将来意义。
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