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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 容易
  • 浏览 1701

So difficult_____it to acquire a large vocabulary without the help of a teacher that he was close to giving up .

A.he have felt B.have he felt C.he did feel D.did he feel
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Sodifficultittoacquirealargevo