According to the school rules no student go out of school without the permission of the

问题补充：

According to the school rules, no student go out of school without the permission

of the teachers.

A. will

B. must

C. may

D. shall

答案：

A. will

B. must

C. may

(答案→)D. shall

解析：考查情态动词。shall在句中作“允诺”之意。句意：根据校规，学生没有老师的批准不许离开学校。