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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 中等
  • 浏览 1700

---Have all the mysteries been cleared up?
--- Almost. But ______ only one question ______.

A.there remains; answered B.it remains; to be answered
C.there remains; to be answered D.it remains; answered
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Haveallthemysteriesbeencleared