问题
选择题
It is recommended by the representatives that traditional cultures _____
A．should preserve
B．have been preserved
C．be preserved
D．must be preserved
答案
答案：C
题目分析：考查虚拟语气：句意：代表推荐传统文化应该保留。这是it做形式主语的句子，that引导的是真正的主语从句，主句中的谓语是recommend。主语从句中的谓语用虚拟语气，should do，should可以省略，而且传统文化是被保留，选C。