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