Besides the to others,there was still ___ third one who said he was ___ second to reach the top

题目

Besides the to others,there was still ___ third one who said he was ___ second to reach the top
a,a; the b.the; the
选A WHY?怎么翻译

答案

除了其他的,还有一个第三名也说自己是第二个到达顶楼的.