◎ 题干
— How many _____ are there in the playhouse?
— 20 boys and 21 girls.

[     ]

A. students
B. student
C. apples
◎ 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“— How many _____ are there in the playhouse? — 20 boys and 21 girls. [ ]A. students B. student C. apples …”主要考查了你对  【可数名词(单数名词,复数名词)】  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。