◎ 题干
Part of the family________out on holiday. They are supposed to be back at the end of this month.
[     ]
A.is  
B.are  
C.was  
D.were
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“Part of the family________out on holiday. They are supposed to be back at the end of this month.[ ]A.isB.areC.wasD.were…”主要考查了你对  【一般将来时】【主谓一致】  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。