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单选题 公共英语二级
2010-07-26

The underlined word“they”in the last sentence of the first paragraph refers to___

参考答案

B

答案解析

词语释意题。从文章第一段The sheep allow the birds to do so because they move the cause of discomfort.So although they can live without each other.they do better together.可知,这里的“they”指的是鸟和羊。