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
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(答案→)A. be switched
B. would switch
C. should switch
D. must be switched
解析：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。