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  • 科目:英语
  • 题型:单选题
  • 难度:中等
  • 人气:1310

—Is the letter from your mother?
—Yes.But she ________the letter herself,because she doesn’t even know one word.

A.needn’t have written  B.can’t have written
C.might not have written D.should not have written
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—Istheletterfromyourmother?—Ye