◎ 题干
It's ______ o'clock now.        

A. three    
B. at three  
C. half past three  
D. at half past three
◎ 答案
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“It's ______ o'clock now.[ ]A. threeB. at three C. half past three D. at half past three…”主要考查了你对  【时刻】  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。