◎ 题干
单项选择。
______ ______ are they? They are red, green, yellow and grey.
[     ]
A.Which colour
B.What colour
C.Which colours
D.What colours
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“单项选择。______ ______ are they? They are red, green, yellow and grey. [ ]A.Which colour B.What colour C.Which colours D.What colours …”主要考查了你对  【可数名词(单数名词,复数名词)】【疑问词组】  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。