◎ 题干
We'll hold a party in celebration of the 90th birthday of the CPC (中国共产党) ________ Friday.
[     ]
A. in
B. on
C. at
◎ 答案
查看答案
◎ 解析
查看解析
◎ 知识点
    根据n多题专家分析,试题“We'll hold a party in celebration of the 90th birthday of the CPC (中国共产党) ________ Friday.[ ]A. inB. onC. at …”主要考查了你对  【介词】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。