PresidentXigaveaspeechatthe        AnniversaryoftheCent...

问题详情：

President Xi gave a speech at the         Anniversary of the Central Committee School which was held         March 1st, 2013.

A. eightieth; in            B. eighties; at            C. eighty; on            D. eightieth; on 

【回答】

D

知识点：相似 相近词比较

题型：选择题