. The school rules state that no child ______ be allowed out of the school, unless accompanied by an...
2023-01-04 22:44:39 138次 福建省2009-2010学年高二下学期期中考试英语试题 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
.
The school rules state that no child ______ be allowed out of the school,
unless accompanied by an adult.
A will B.
must C.
shall D. may
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