问题
选择题
The workers demanded that their employer_____ their working conditions.
A.had improved
B.would improve
C.improve
D.will improve
答案
答案:C
题目分析:考查虚拟语气:句意:工人们要求他们的老板改善工作条件。主句的谓语是demand,谓语动词用虚拟语气,用should do,should可以省略,选C。