◎ 题干
Look! Some children            in the room. 
[     ]
A. sing                        
B. sings
C. is singing                    
D. are singing
◎ 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“Look! Some children in the room. [ ]A. sing B. sings C. is singing D. are singing …”主要考查了你对  【可数名词(单数名词,复数名词)】【现在进行时】  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。