______________ twice a year, whether it is a car, a bus or a truck, is the rule

题型：不详难度：来源：

______________ 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．Examining	B．Examined
C．Having been examined	D．Being examined

答案

D

解析

试题分析：考查动名词做句子的主语。句意：五路是汽车，公交车还是卡车，两年被检查一次是这个城市里所以的司机都要遵守的规则。本题中的being examined是一个动名词的被动形式做句子的主语。故D项正确。
点评：动名词做句子的主语表示的是经常性习惯性的行为，要区别与不定式做主语，不定式做主语表示的是具体的一次性的行为。