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【题目】用适当的连词填空
The school rules state that no child shall be allowed out of the school during the day,__________ accompanied by an adult.
【答案】见解析
【解析】unless
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【题目】用适当的连词填空
The school rules state that no child shall be allowed out of the school during the day,__________ accompanied by an adult.
【答案】见解析
【解析】unless