Read and listen to the article. Then open the activities on the right side of the page to improve your English! http://www.voanews.com/learningenglish/theclassroom/articles/american_culture/Worlds-Population-Reaches-7-Billion-134696423.html [audio:http://nippondream.com/voa/population_article.mp3|titles=population_article] http://nippondream.com/voa/population_article.mp3 Words…
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