Question

He speaks English ________ an American, so we all believe that he has stayed in America for many years.

A.as good as B.worse than C.as badly as D.as well as

Answer

D

【解析】

句意：他英语说得和美国人一样好，所以我们都相信他在美国已经呆了很多年了。

考查副词原级。根据“ so we all believe that he has stayed in America for many years.”所以我们都相信他在美国已经呆了很多年了，所以此处是“和……一样好”；分析句子可知，此处缺副词修饰动词“speaks”，故选D。