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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 中等
  • 浏览 1120

Mr. Daniel is now in our school, but he once    __ in NO. 1 Middle School for three years.

A.works B.worked
C.had worked D.has worked
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Mr.Danielisnowinourschool,buth