Users practicing this topic

Post date	Users	Rates	Content
2013-11-04	fikri	65	Check this topic
2013-11-24	Azizkhan Nightshade	90	Check this topic

Topic title: The diagram below shows a process of turning dirty water into clean water.Summarize the information by selecting and reporting the main features, and make comparisons where relevant.

Topic category: IELTS