改错 People say that the world's populations may be seven billion by the year 2010.say划线 the world's 划线population划线by the划线

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改错Peoplesaythattheworld''spopulationsmaybesevenbillionbytheyear2010.say划线theworld''s划线population划线byth

改错 People say that the world's populations may be seven billion by the year 2010.say划线 the world's 划线population划线by the划线
改错 People say that the world's populations may be seven billion by the year 2010.
say划线 the world's 划线population划线by the划线

改错 People say that the world's populations may be seven billion by the year 2010.say划线 the world's 划线population划线by the划线
populations 改为population
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你好,本题中的错误时population,因为这一单词通常作为单数解,不加s