The man in prison insisted that he nothing wrong and set free.A. should do should beB.

问题补充：

The man in prison insisted that he nothing wrong and set free.

A. should do, should be

B. had done, should be

C. had done, had been

D. should do, had been

答案：

A. should do, should be

(答案→)B. had done, should be

C. had done, had been

D. should do, had been

解析：insist作“坚持认为”讲后接宾语从句要用陈述语序；insist作“坚持要求”讲后接宾语从句要用虚拟语气（should）+ do。句意：坐监狱的那个人认为他没做错什么并且要求释放。