组卷网 > 高中英语综合库 > 语法 > 词法 > 情态动词 > 情态动词的用法 > can/could的用法 > can/could表示推测
题型:单项选择 难度:0.4 引用次数:615 题号:6953975
According to the school rule, no child            be allowed out of the school, unless accompanied by his or her own parents.
A.shouldB.must
C.shallD.can

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