YingqiBirdNestLibrary，thesmallestlibraryintheworld，waso...
来源：语文精选馆 2.16W
问题详情：
Yingqi Bird Nest Library，the smallest library in the world，was opened to the public in Nanjing's Huashu Village________the World Reading Day this year．
A．on B．in C．at D．as
【回答】
A
知识点：介词和介词短语
题型：选择题
