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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 中等
  • 浏览 1447

Tom was a little weak in English. He had some difficulty in ______ the teacher in class.

A.understand B.to understand
C.understanding D.understood
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TomwasalittleweakinEnglish.Heh