虚拟语气
问题描述：
虚拟语气
It was requested that the play ____again A.should put on B.would put on C.be put on D.put on
答
答案是C
1 句子结构：it is / was requested that + 句子（谓语动词是should + 动词原形）,should可以省略.
2 that后面的从句是被动语态,所以是（should）be put on.