3RD PHYSICS MATHEMATICS

LEARN MORE ABOUT IRREGULAR PLURALS
http://englishwithatwist.com/2014/02/04/english-grammar-pill-irregular-plurals-an-infographic/

PRACTICE PRONUNCIATION

http://www.youtube.com/watch?v=Xm2RIcGEVPw


MORE PRONUNCIATION PRACTICE

http://www.youtube.com/watch?v=VIGbEsJief4