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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 中等
  • 浏览 353

Although he is only a _____ boy. He knows a lot.

A.five year old
B.five-year-old
C.five-years-old
D.five-year-olds
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Althoughheisonlyaboy.Heknowsal