问题补充：
She is very good at painting. She can paint her teacher.
A. as better as
B. as well as
C. as good as
D. so well as
答案：
A. as better as
(答案→)B. as well as
C. as good as
D. so well as
解析：“as…as…” 结构的意思为“与……一样”，其中的第一个as副词，其后通常接形容词或副词(用原级)，第二个as可用作介词(后接名词或代词)或连词(后接从句)。在否定句中，第一个 as 也可换成 so。修饰谓语动词 paint，应用副词 well，而不是形容词good；本句为肯定句，故选B。
