4-А, 4-C

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http://www.olimpus.ua/attachments/article/479/Autumn_session_A04_2012.pdf
http://www.olimpus.ua/attachments/article/488/Winter_session_A04_2012.pdf
http://www.olimpus.ua/attachments/article/488/Winter_session_A04_2014.pdf
http://www.olimpus.ua/attachments/article/500/Spring_session_A04_2013.pdf
http://www.olimpus.ua/attachments/article/500/Spring_session_A04_2014.pdf
You can find answers here