It is required in our school that lights in students’ rooms ______ off by 11o’c

题型：不详难度：来源：

It is required in our school that lights in students’ rooms ______ off by 11o’clock.

A．be switched

B．would switch

C．should switch

D．must be switched

答案

A

解析

试题分析：考查虚拟语气。固定结构：It is required that从句使用虚拟语气should+动词原形。Should可以省略。本题在be前面省略了should.句意：人们要求在我们学校里，教室里的等在11点要被关闭。根据句意说明使用被动语态。故A正确。
点评：固定结构：It is required that从句使用虚拟语气should+动词原形。Should可以省略。