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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 容易
  • 浏览 2009

At the time of the earthquake Jeff was still in his office. He ________ to finish a project before he left for the day.

A.has tried B.had tried C.has been trying D.had been trying
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AtthetimeoftheearthquakeJeffwa