【正确答案】：
IN POLITICS, THEY DID ALL THE TEDIOUS DETAILS THAT MADE THE DIFFERENCE BETWEEN VICTORY AND DEFEAT ON ELECTION DAY AND SELDOM HAD THE CHANCE TO REACH A BETTER POSITION, WHILE THE MEN REAPED THE REWARDS. 
【题目解析】：考点：政治：politics；乏味：tedious；胜败：victory and defeat；高层职位：a better position；得到好处：reap the rewards。句子结构：定语从句+并列句，that引导的定语从句用来修饰先行词details，while意为“而，然而”，作并列连词，表示对比。
