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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 中等
  • 浏览 993

The first textbooks __________ for teaching English as a foreign language came out in the 16th century.

A.having written
B.to have written
C.being written
D.written
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ThefirsttextbooksforteachingEn