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  • 科目:英语
  • 题型:单选题
  • 难度:中等
  • 人气:1384

Mary is the only one of the teachers who ________ a little Chinese because she is one of my friends who ________ been to China.

A.know;have B.knows;has
C.knows;have D.know;has
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Maryistheonlyoneoftheteachersw