英语问题，请您帮忙分析一下这句话，谢谢。

来源：百度知道 编辑：UC知道 时间：2024/05/05 06:46:17
i left as early as was consistent with politeness,这句话是什么结构,as有是什么用法？谢谢o(∩_∩)o...

I主语
left谓语
后面是状语(做阅读理解时一般状语可以跳过)
主要是as ... as 结构
例如
as early as possible
was consistent with politeness就相当于这里的possible

http://tieba.baidu.com/f?ct=&tn=&rn=&pn=&lm=&sc=&kw=%BB%E1%D0%C4%D2%BB%BB%F7&rs2=0&myselectvalue=1&word=%BB%E1%D0%C4%D2%BB%BB%F7&submit=%B0%D9%B6%C8%D2%BB%CF%C2&tb=on

用as ... as 结构 借代