题目内容
---- Are you tired, Ken?
---- Yes. You know, I _____ for almost 12 hours!
A. have been working B. am working C. had worked D. will work
A
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题目内容
---- Are you tired, Ken?
---- Yes. You know, I _____ for almost 12 hours!
A. have been working B. am working C. had worked D. will work
A