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  • 科目:英语
  • 题型:单选题
  • 难度:中等
  • 人气:955
题文

—You   supposed to clean the room, but it is still in a mess.
—Oh, I was so busy that I forgot.

A.are B.were
C.have been D.will be
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—Yousupposedtocleantheroom,but