◎ 题干
It's time____ us ___ practice ____ football.
[     ]
A  for, to , play  
B  to, to , playing  
C  for, to , to play  
D for ,to, playing
◎ 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 time____ us ___ practice ____ football. [ ]Afor, to , playB to, to , playingC for, to , to playD for ,to, playing…”主要考查了你对  【不定式】【动名词】【介词】  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。