Kinds of Festivals https://englishlive.ef.com/blog/tomato-fights-burning-man-introducing-different-types-festivals/
MAD as a hatter http://www.history.com/news/ask-history/where-did-the-phrase-mad-as-a-hatter-come-from
Public transport or private transport http://www.energysavingsecrets.co.uk/publictransportvsprivatetransportthedebate.html
Modern media and its effect on people http://www.ielts-mentor.com/ielts/blog/ielts-essay-modern-media-and-its-effect-on-people/
Impact of technology on communication http://www.ielts-mentor.com/ielts/blog/ielts-essay-impact-of-technology-on-communication/
Illegal downloading http://smallbusiness.chron.com/illegally-downloading-music-impact-music-industry-27748.html
Globalisation http://www.bbc.co.uk/schools/gcsebitesize/geography/globalisation/globalisation_rev1.shtml
Benefits of human genetic engineering http://www.allaboutpopularissues.org/benefits-of-human-genetic-engineering-faq.htm