问题补充:
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:
(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。