题目内容
3．如果我们要离开学校，我们应该向老师报请批准．If we want to leave the school，we shouldask permissionfrom our teacher．
分析 ask permission．
解答 答案：ask permission．should是情态动词，后加动词原形，ask permission请求批准，故答案是ask permission．
点评 ask sb．for permission请求许可
ask sb's permission 征求某人允许
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