When it comes to a foreign language he is not quick a learner as his brother.A. veryB. t

问题补充：

When it comes to a foreign language, he is not quick a learner as his brother.

A. very

B. too

C. so

D. rather

答案：

A. very

B. too

(答案→)C. so

D. rather

解析：考查副词：句意：当说到外语的时候，他不像他哥哥是很聪明的学习者。使用so+adj+a/an+名词，very，fairly不能这样用，too可以这样用，但意思不对。选C。