分析此英文句的句子成分.It's the answer that led those who have been tol

It主's 谓the answer 表 （主句）
同位语从句that led those
定语从句
who have been told for so long by so many to be cynical,and fearful ,and doubtful of
宾语从句what we can achieve to put their hands on the arc of history and bend it once more toward the hope of a better day.