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Kids are not allowed to leave kindergartens               their parents come to pick them up.
A.unlessB.sinceC.although D.because
A

试题分析:A. unless 除非…否则B. since自从,因为   C. although 尽管D. because因为;句意:孩子们不允许离开幼儿园,除非他们的父母亲来接他们。故选A.
点评:此题考查连词的表面意思,并不难。对于此类连词词义辨析的题目,首先应着眼于句意的理解,在理解句意的基础上结合四个选项的意思,采用排除法,得出最符合题意的一项答案。在平时的学习中要勤积累,并掌握这些连词的常用用法。
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