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  • 科目:英语
  • 题型:单选题
  • 难度:较易
  • 人气:1317

—May we leave classroom now?
—No, you        . You        to leave until the bell rings.

A.mustn’t, are allowed B.don’t have to, are supposed
C.needn’t, aren’t allowed D.can’t, aren’t supposed
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—Mayweleaveclassroomnow?—No,yo