The captain urged that the mission before dark.
A. must be finished
B. be finished
C. ought to be finished
D. was finished
网友回答
A. must be finished
(答案→)B. be finished
C. ought to be finished
D. was finished
解析：本题考查虚拟语气。句中urge作“强烈要求”讲，从句用should + v原形的虚拟语气，should可以省略。根据句意选择B。