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    9．Yesterday I took my car to the garage to have them ________ the air-conditioner．（　　）
    A．to checkB．checkingC．checkedD．check

    分析 昨天我把车子送到了修理厂，让他们检查一下空调．

    解答 答案：D 题干中have them check the air-conditioner表示让他们检查空调；have表示让某人做某事，是一个使役动词，常用搭配结构是：have sb do sth让某人做某事；have sb doing sth让某人一直做某事；have sth done让某物被怎样．句中them与check之间是主动的动作，且表示一次行发生的，不是持续的动作．故选D．

    点评 动词不等式是非谓语动词的一种，也是英语中比较活跃的一类结构．通常用来作主语，宾语，表语，定语，状语等．学习时要全面掌握，熟练运用．

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