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2016-08-19	ducquang98	84	Check this topic
2018-08-19	Rajwinder k	73	Check this topic
2018-08-20	A92	73	Check this topic
2019-06-04	LIMIAO	78	Check this topic
2017-04-26	miladpouya	85	Check this topic
2017-10-14	vuthuy125	61	Check this topic
2019-09-12	Milan karki	56	Check this topic
2019-04-27	ochirvaani	78	Check this topic
2019-11-19	Helen Ng	73	Check this topic
2019-03-13	HARPREET KAUR MAAN	78	Check this topic
2019-06-25	windingsilverfish	56	Check this topic
2017-03-16	kajal A. Patel	64	Check this topic
2018-08-22	suykaaa	78	Check this topic
2017-03-24	zddemir	78	Check this topic
2015-04-10	Sara83	80	Check this topic

Topic title: The diagram below shows how a central heating system in a house works.Summarise the information by selecting and reporting the main features, and make comparisons whererelevant.

Topic category: IELTS Writing Task I - IELTS Academic