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  • 科目:英语
  • 题型:单选题
  • 难度:较难
  • 人气:1865

After ______ seemed an endless effort, the patient was finally able to carry out _____ seemed a perfect normal walk.

A.that; that B.what; what C.it; that D.which; it
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Afterseemedanendlesseffort,the