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2. I won’t call you , something unexpected happens.

   A. unless   B. whether

   C. because   D. while

2. A

2. A解析:考査条件状语从句。句意:除 非有意外情况,否则我就不给你打电话 了。

unless意为“除非,如果不……”,引 导条件状语从句。

题目来源:2016年周测月考直通高考高中英语必修4外研版 > 周内课时练12 Period 4 Grammar & Writing

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