A library with five thousand books to the nation as a gift.
A. have offered
B. are offered
C. has offered
D. is offered
网友回答
A. have offered
B. are offered
C. has offered
(答案→)D. is offered
解析：考查时态语态。句意：一家有五千本藏书的图书馆被作为礼物提供给这个国家。图书馆是被提供的对象，故用被动语态。主语是第三人称单数，故选D。