_ properly, a car can be used for many years.
A. Maintained
B. Maintaining
C. To be maintained
D. To maintain
网友回答
(答案→)A. Maintained
B. Maintaining
C. To be maintained
D. To maintain
解析: 考察非谓语动词用法。本句中主句的主语a car与前面的动词maintain(维护)之间存在着被动关系,故使用过去分词短语在句中做状语。句义:如果被适当地维护,汽车可以被使用很多年。故A正确。