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2018-01-26	alirezakasaie	85	Check this topic
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2016-09-29	Gs	76	Check this topic
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2017-03-30	dhani	75	Check this topic

Topic title: Animal fossils usually provide very little opportunity to study the actual animal tissues, because in fossils the animals' living tissues have been largely replaced by minerals. Thus, scientists were very excited recently when it appeared that a 70-millio

Topic category: Integrated TOEFL Writing