【正确答案】 1、the last torchbearer    

【答案解析】[定位] 由题干关键词the stadium track和lights the cauldron可将答案定位至倒数第二段。
[解析] …the last torchbearer enters．．．That individual runs around the stadium track once，then lights the Olympic cauldron，signaling the official start of the Olympic Games。分析可知that individual指代the last torchbearer，所以可知答案。