Question

【题目】The students are not allowed to leave school unless they get the aof their head teacher.

Answer 1

【答案】approval
【解析】句意：除非得到班主任的批准，否则学生是不被允许离开学校的。 approval名词”批准，赞成“；该词在句中作为动词get的宾语。故填approval 。