◎ 题干
— What're those?
— They're ____________ and cars.
[     ]
A. bus
B. buses
C. a bus
D. an bus
◎ 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“— What're those? — They're ____________ and cars. [ ]A. busB. busesC. a busD. an bus…”主要考查了你对  【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。