as as 中间填什么?不是原形 选项是 carefully careful more careful more car

as as 中间加形容词或副词原级 这就取决于前面的那个词 当前面是be动词时,用形容词原级；当前面是动词时,用副词原级.
例：Lin Ying is not as good at sports as her sister .
He runs as fast as he can .