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
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B
【解析】介词的考查。在周几前面应该用介词at.