题目内容
4.The students can't go home they finish cleaning the classroom,for it's their duty.( )| A. | When | B. | since | C. | if | D. | until |
分析 学生们直到打扫完教室才能回家,因为这是他们的义务.
解答 答案:D.
联系语境并根据前后句子的对比,可知本句应理解为:学生们直到打扫完教室才能回家,因为这是他们的义务;结合关键词 can't,可以判断出此句应用固定表达not…until来完成,意为"直到…才…"引导一个时间状语从句.故选D
点评 本题主要考查连词的用法,做此类题目一定要弄清句意,明白上下文之间的关系,才能更好地判断出所要用的连词.
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