单项选择题

— Hvell the students know tht our clss will visit the fctory thisfternoon.— Yes , Every st

ud— Hvell the students know tht our clss will visit the fctory thisfternoon. — Yes , Every student ________bout it.hve told B.hve been told C.hs told D.hs been toldA.have toldB.have been toldC.has tolD.has been told
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