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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