Users practiced this speaking topic

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divjais186	Wed, 02/05/2014 - 16:36	88	view
silviadan	Mon, 01/25/2016 - 10:22	80	view
ket2014	Tue, 10/07/2014 - 17:28	83	view

Topic title: Which could be the best invention of humankind?

Topic category: TOEFL speaking