–Can I get out at noon?--No. Our school rules state that no student be allowed out at noo

问题补充：

–Can I get out at noon?

--No. Our school rules state that no student be allowed out at noon, unless he has a request form.

A. shall

B. will

C. must

D. can

答案：

(答案→)A. shall

B. will

C. must

D. can

解析：句意：--中午我可以出去吗？--不，我们学校的规定说没有学生中午允许出去，除非他有请假条。Shall可以用于第二，第三人称表示“规定，命令，警告，允诺”，will“愿意”，can“能够”，所以选A。