It is difficult work that we cant finish it in a short time.A. so aB. such aC. soD. such

问题补充：

It is difficult work that we can finish it in a short time.

A. so a

B. such a

C. so

D. such

答案：

A. so a

B. such a

C. so

(答案→)D. such

解析：so是副词，如此，这么；such形容词，如此的，这样的。根据下文difficult work中心词是work，故用such多定语，选D。如此艰难的工作