单选题 The plan was abandoned when it was discovered just how much the scheme would cost.
【正确答案】 A
【答案解析】A．abandon“放弃、丢弃”；give up“放弃”；keep up“继续”；set up“建立”run up“升起(旗帜)”。当发现该计划耗资状况时，取消了该计划。