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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 中等
  • 浏览 222

We’ll leave for senior high schools soon. It’s really difficult _______ goodbye to our teachers and friends.

A.to say B.to speak
C.saying D.speaking
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We’llleaveforseniorhighschools