He is clever boy that he can solve many difficult problems.A. so a soB. such a soC. su

问题补充：

He is clever boy that he can solve many difficult problems.

A. so a, so

B. such a, so

C. such, such

D. so, so

答案：

A. so a, so

(答案→)B. such a, so

C. such, such

D. so, so

解析：考查固定短语。clever boy 中心词是boy 故用such , 如此多的这是固定结构，故用so many 或者so much .这里是可数名词故用 so many . 故选B。