Nowadays it is difficult for people to find work everywhere because economic situation i

问题补充：

Nowadays it is difficult for people to find work everywhere because economic situation is very serious.

A. 不填；an

B. a; the

C. 不填; the

D. a; 不填;

答案：

A. 不填；an

B. a; the

(答案→)C. 不填; the

D. a; 不填;

解析：考察冠词用法。前文找工作，泛指任何一种工作。work作为抽象名词是代表“工作”这个类别，故不用冠词，下文是特指非常严峻的经济形势，故用定冠词。选C。