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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 容易
  • 浏览 1969

—Tom says he is too tired to go on.
—He can’t be.He ____for an hour.

A.just worked
B.has only been working
C.has just worked
D.had only been working
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—Tomsaysheistootiredtogoon.—H