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2019-05-04	manhhieu2001	68	Check this topic
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2015-09-20	wellington025	70	Check this topic

Topic title: Populations of the yellow cedar, a species of tree that is common in northwestern North America, have been steadily declining for more than a century now, since about 1880. Scientists have advanced several hypotheses to explain this decline.One hypothesis

Topic category: Integrated TOEFL Writing