— It is said that Mr Jin was elected headmaster of the new school.— He is hardworking tha

问题补充：

— It is said that Mr Jin was elected headmaster of the new school.

— He is hardworking that it is no surprise for him to get post.

A. so a, such

B. so, such a

C. such a, so

D. such, so

答案：

A. so a, such

(答案→)B. so, such a

C. such a, so

D. such, so

解析：so +adj / adv,such +a/an adj+n，故选B