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twice a year, whether it is a car or a bus or a truck, is the rule that every dr

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twice a year, whether it is a car or a bus or a truck, is the rule that every dr

___twice a year, whether it is a car or a bus or a truck, is the rule that every driver must obey in this city.
    A. Examining  B. Examined    C. Being examined   D. Having been examined

试题答案

  C