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  • 科目:英语
  • 题型:单选题
  • 难度:中等
  • 人气:1603

They ______ so tired if they ______ for a whole day.        

A.wouldn’t feel, didn’t walk B.wouldn’t feel, weren’t walking
C.wouldn’t be feeling, weren’t walking D.wouldn’t be feeling, hadn’t been walking
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Theysotirediftheyforawholeday.