题目内容
When I dropped in, Dr Smith ________, so we only had time for a few words.
- A.just left
- B.was just leaving
- C.has just left
- D.had just left
B
根据题干when I dropped in为过去的某一点时间,句子要用过去进行时。
根据题干when I dropped in为过去的某一点时间,句子要用过去进行时。
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