问题
选择题
We'll hold a party in celebration of the 90th birthday of the CPC (中 * * 党) ________ Friday.[ ]
A. in
B. on
C. at
答案
答案：B
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We'll hold a party in celebration of the 90th birthday of the CPC (中 * * 党) ________ Friday.[ ]
A. in
B. on
C. at
答案：B