Question

He speaks English well indeed, but of course not___________a native speaker.

A.  as fluent as                     B.  more fluent than  

C.  so fluently as                    D.  much fluently than

Answer 1

C

解析:

此题考查So adj./adv. As和as adj. / adv. As 用法，前者主要用于否定句，在这里要修饰谓语动词，故选C。