【正确答案】：
THE AMERCIAN DREAM PROMISED OLDER PEOPLE THAT IF THEY WORKED HARD ENOUGH ALL THEIR LIVES, THINGS WOULD TURN OUT WELL FOR THEM.
【题目解析】：考点：the American dream：美国梦；promise：许诺，给人以…的指望或希望；work hard：努力工作；turn out well：好转。句子结构：本题考查that引导宾语从句，if引导条件状语从句。