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  • 科目:英语
  • 题型:单选题
  • 难度:中等
  • 人气:773

The possibility of a murder _____, the police have set about looking for the clues to her suicide.

A.to be ruled out B.to rule out
C.having ruled out D.having been ruled out
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Thepossibilityofamurder,thepol