◎ 题干
—I hear a number of workers in the factory______out of work.  
—Yes, and the number_____ quite huge.
[     ]
A. are; is          
B. is; are        
C. is; is        
D. are; are
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“—I hear a number of workers in the factory______out of work.—Yes, and the number_____ quite huge.[ ]A. are; isB. is; are C. is; is D. are; are…”主要考查了你对  【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。