twiceayear,whetheritisacarorabusoratruck,istherule...

问题详情：

      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． Having been examined                              D． Being examined

【回答】

D

知识点：非谓语动词

题型：选择题