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—Hello, can I speak to Mr. Smith?
—I’m sorry, but it is 3 weeks _____ he worked here.
A.beforeB.sinceC.afterD.while
B

试题分析:考查连词的用法:这是固定句型:It is+一段时间+since…,翻译是要注意,若since引导的状语从句的谓语动词是终止性的过去时,则从句表示的时间是“从动作开始的那一时刻起”,若since引导的状语从句的谓语动词是持续性动词或表示状态的动词的过去时,则从句表示的时间是“从那持续动作或状态结束时算起”。如这道题,work是延续性动词,句意是:--你好,我可以和斯密斯先生说话吗?--对不起,他不在这儿工作已经三个星期了。
考点:考查连词和固定句型
点评;固定句型平时多加强记忆,句型的搭配和一些细节,做题时对应的细节对了,就可以判断是什么句型了。
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