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  • 科目:英语
  • 题型:单选题
  • 难度:较易
  • 人气:2080

Most of the students haven’t finished their papers on time for __________reasons---one of which was that they carried out a week-long investigation in the countryside.

A.previous B.accurate
C.original D.various
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Mostofthestudentshaven’tfinish