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  • 科目:英语
  • 题型:单选题
  • 难度:中等
  • 人气:914

I still remember there used to be _______ underground cave. My friends and I often had fun in _______ 18-foot-deep cave.

A.an; the B.a; the C.an; an D.a; an
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Istillrememberthereusedtobeund