WhohelpedBettytidyup的精选

问题详情：—WhohelpedBettytidyupthebedroomjustnow?—________cleaneditallbyherself.A．Somebody B．Nobody C．Everybody D．Anybody【回答】B点拨：考查不定代词。somebody“某人；有人”；nobody“没有人”；everybody“每个人...