He plays the piano( )his elder brother does.

问题描述:

He plays the piano( )his elder brother does.
A.as good as B.as better as C.as well as D.so well as

as well as本短语有和的意思,但是本句中是和...一样好的意思,因为是修饰play,所以必须用副词.as good as不能用
没有as better as的说法
so well as也没有这种说法