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  • 科目:英语
  • 题型:单选题
  • 难度:较易
  • 人气:1760

—Can you keep a secret?
—You ________ worry—I'm not going to mention it to anyone.

A.needn't B.couldn't
C.mustn't D.won't
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—Canyoukeepasecret?—Youworry—I