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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 中等
  • 浏览 2031

—Hi, Susan, you look tired.
—I ______ for months for the coming celebration for the school’s 60th anniversary.

A.was preparing B.have been preparing C.had prepared D.prepare
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—Hi,Susan,youlooktired.—Iformo