加形容词或副词啊，具体是什么，要与前面的动词，还有句意配合
举例：
You should work as hard as possible.
hard副词，与work搭配
I want to have as many books as possible.
many与名词搭配
as 动词原形 as possble，列：He run as quickly as possble，many这系列的词有a lot of ,lots of;
few很少，几乎木有,little几乎木有 这俩都是表否定的；a few一些，少许, a lttle一点儿 这俩是表肯定的。fewer 更少的，后加可数名词复数形式；less更少的，后加不可数名词。more更多的 后加可数名词复数或不可数名词
as和as中间加形容词或副词，意思是尽可能......的（地），例如He run as quickly as possble.(他尽可能快地跑）
这个怎么说..给你举几个例子吧
Run as fast as possible
Write the sentence as long as possible
也就是as 与 as possible之间加上形容你动词的形容词 可懂？
如果前面是动词，中间用副词。例如：He draws as carefully as possible.
至于many就是可数名词用many，不可数名词用much
