He suggested the person referred put into prison.A. isB. beC. should beD. to be

问题补充：

He suggested the person referred put into prison.

A. is

B. be

C. should be

D. to be

答案：

A. is

B. be

C. should be

(答案→)D. to be

解析：考查词组和虚拟语气：主句的谓语是 suggest宾语从句用虚拟语气： that sb. should do sth. 其中that 和should 可以省略。句子中referred to 是过去分词作定语，修饰the person ，be put into prison是宾语从句的谓语部分，省略了should，句意：他建议被提到的人被送进监狱。选D。