So far as English is concerned it is not you might think.A. so difficultB. so difficult as

问题补充：

So far as English is concerned,it is not you might think.

A. so difficult

B. so difficult as

C. so much difficult

D. so difficult that

答案：

A. so difficult

(答案→)B. so difficult as

C. so much difficult

D. so difficult that

解析：so difficult as you might think意思是“像你想象得那样难”，A、C两项无法和you might think搭配使用;D项中的that应引导结果状语从句，放在句中意义不对。