公共英语一级

单选题I have no time to do exercises。I’m very busy with my work．

A．because
B．until
C．though

参考答案：A进入在线模考
句意：由于忙于工作，我没有时间做运动。此题考查的是连接词的辨析。because用于因果关系；until表示直到；though用于让步从句中，表示“尽管”。此句中主句和从句的关系是因果，故A正确。【知识拓展】常用的引导状语从句的连接词有：因此S0．there．fore，so that；因为because，because of，in that，since；当…时when，while，as；但是but，although，though；既然now that。

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