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  • 科目:英语
  • 题型:单选题
  • 难度:中等
  • 人气:1725

English teachers are supposed ________ their students a test in class, even after class, ________ better teaching results.

A.to give; ensuring B.giving; to ensure
C.to give; to ensure D.giving; ensuring
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Englishteachersaresupposedthei