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  • 科目:英语
  • 题型:单选题
  • 难度:中等
  • 人气:172

—How's your new babysitter?
—We ________ ask for a better one.All our kids love her so much.(2011·浙江)

A.should B.might C.mustn't D.couldn't
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—Howsyournewbabysitter?—Weaskf