twice a year, whether it is a car, a bus or a truck, is the rule that every driv
来源:网络
时间:
推荐文章

______ twice a year, whether itis a car, a bus or a truck, is the rule that every driver must obey in thiscity.
A. Examing B. Examined C. Being examined D.Having been examined
试题答案
【答案】
C
【解析】略