he is very friendly to his fans为什么用friendly?friend不行吗?

he is very friendly to his fans为什么用friendly?friend不行吗?
he is very friendly to his fans为什么用friendly?friend不行吗?

he is very friendly to his fans为什么用friendly?friend不行吗?
friendly是形容词,要跟在BE动词后面作表语
friend是名词,在形容词后面作定语

当然不行
friend是名词，而friendly是形容词．

不行
friendly是形容词
friend是名词