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What percentage do the poor countries account for in the world It’s estimated that _______________________ countries of the world are very poor.

【参考答案】

two thirds

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None of us could speak the language (speak) ______in that area, so we took an interpreter with us.

What percentage do the poor countries account for in the world It’s estimated that _______________________ countries of the world are very poor. 您的浏览器不支持 audio 元素。