Alex has been in China for quite a few years. he speaks fluent Chinese.A. EspeciallyB.

问题补充：

Alex has been in China for quite a few years. ， he speaks fluent Chinese.

A. Especially

B. Frequently

C. Surprisingly

D. Consequently

答案：

A. Especially

B. Frequently

C. Surprisingly

(答案→)D. Consequently

解析：D 考察副词辨析。句意：Alex在中国待了很多年，因此，他的中文说得很流利。Conseauently因此，强调上下文之间的因果关系。故D正确。