All the universities have a duty to keep their students ________ of the quick development of the scientific world. A.informing B.to inform C.informed D.being informed
答案:解析:句意:所有大学都有责任让学生了解科学界的快速发展。此处用了keep+宾语+宾补的句式,宾语their students 与动词inform之间为动宾关系,故用过去分词形式。 keep sb. informed of “使某人随时了解……”。 答案:C