— I wonder how much you charge for your services．— The first two are free ______
题型：不详难度：来源：
— I wonder how much you charge for your services．
— The first two are free _______the third costs $30．| A．while | B．until | C．when | D．before |
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答案
| A. |
解析
试题分析：考查连词：A. while然而，虽然，当…时候B. until直到C. when当…时候D. before在…前面，句意：--我想知道你的服务要多少钱？--前两个是免费的，第三个是30美元。选A。
点评：连词的辨析要放在上下文总进行，同时要注意一些形式相近的连词的词义辨析。While的用法较多，也是常考的连词。 |
举一反三
The notice has been told to everyone _______ a party will be held in the open air tomorrow．| A．whether | B．when | C．where | D．that |
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| Remember to think actively as you listen in class, ____ you may fall asleep. |
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