i am doing well 和 i am doing good 哪个对,为什么,副词修饰动词?

问题描述:

i am doing well 和 i am doing good 哪个对,为什么,副词修饰动词?
那怎么好多人说 i am doing good啊,而且电影里,别人问 how r u doing,有人还回答 very busy busy不是形容词吗

i am doing well