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2019-05-31	toefl 2019	86	Check this topic
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2019-10-01	Apolytos	61	Check this topic
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2019-05-31	toefl 2019	75	Check this topic
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2019-05-30	toefl 2019	61	Check this topic
2019-10-08	mahan vahab kashi	80	Check this topic
2018-12-13	Mohammed AlKhars	73	Check this topic
2018-12-01	toeflbeginner	80	Check this topic
2019-01-09	Claire Ying	60	Check this topic

Topic title: At the end of the Triassic period 200 million years ago, there was a mass-extinction event that caused the extinction of more than half of all living species. it was this extinction event that allowed dinosaurs to become the dominant species for the next

Topic category: Integrated TOEFL Writing