【题目】________ twice a year, whether it is a car or bus or a truck, is the rule that every driver must obey in this city.
A. Examined B. Examining C. Having been examined D. Being examined
在线课程【答案】D
【解析】句意：一年检查车两次是这个城市每个司机必须要遵守的规则，无论是小汽车、公交车或是卡车。此处作主语，故用动词的-ing形式，因为车是被检查，所以用被动。故选C。