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  • 科目:英语
  • 题型:单选题
  • 难度:较易
  • 人气:1010
题文

Only then _________ that I can erase the wrong words I have written, but I can’t erase the things I have done.

A.did I realize B.have I realized
C.I realized D.I did realize
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OnlythenthatIcanerasethewrongw