◎ 题干
— Who is knocking at the door?        
—  _______.     
[     ]
A. They are the children
B. There are the children 
C. It is the children
D. That is the children
◎ 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“— Who is knocking at the door?— _______.[ ]A. They are the childrenB. There are the childrenC. It is the children D. That is the children …”主要考查了你对  【强调句】  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。