--What do you think of French?
--In my opinion, French is English
A. a subject so difficult as
B. as difficult a subject as
C. as a subject difficult as
D. difficult as subject as
网友回答
A. a subject so difficult as
(答案→)B. as difficult a subject as
C. as a subject difficult as
D. difficult as subject as
解析：本题考查形容词。本题考查结构∶as／so＋形容词或副词原级 + (a/an) +名词＋as…，句意：法语和英语是一样的困难的学科。选B。