Mar Levine, ____ scientist at University of Pennsylvania, US, has found that competitive eaters have stomachs that can expand like ____ balloon.
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推荐题目
（安徽安庆2009教学质量监测）In preparation for the launching of Shenzhou VII, 4、scientists need knowledge of weather changes.
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the; the
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The president of Haiti said on TV that people in country were making an effort to bring end to poverty.
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----- In recent years,___ problem of global warning has been very serious. ------That’s right. People are facing ____ number of natural disasters now.
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It was ____terrible earthquake and _____number of people who were killed reached more than 20,000.
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—What about ________ conference you attended last week?—To tell the truth, it was too boring, you know, ________ conference like that.
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