题目内容
Every one of us watched the grand military parade (阅兵) on TV to celebrate PRC’s 70th birthday ________ October 1, 2019.
A.on B.in C.at D.to
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题目内容
Every one of us watched the grand military parade (阅兵) on TV to celebrate PRC’s 70th birthday ________ October 1, 2019.
A.on B.in C.at D.to