问题补充：
A library with seven thousand books to the area as a gift.
A. is offered
B. have offered
C. are offered
D. has offered
答案：
(答案→)A. is offered
B. have offered
C. are offered
D. has offered
解析：本句话的主语为a library,with seven thousand books是介词短语，故谓语动词用单数形式。另外，主语与动词offer之间是被动关系，答案选A。
