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  • 科目:英语
  • 题型:单选题
  • 难度:中等
  • 人气:1309

---May we leave the 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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Mayweleavetheclassroomnow?No,y