I can speak English fluently.的fluently是形容词还是副词?为什么要后置

I can speak English fluently.的fluently是形容词还是副词?为什么要后置
I can speak English fluently.的fluently是形容词还是副词?为什么要后置

I can speak English fluently.的fluently是形容词还是副词?为什么要后置
是副词,副词修饰动词,一般放在动词短语后面