flashcards-animals
https://www.youtube.com/watch?v=BM_lX1o_kZU
http://esl.fis.edu/vocab/q21/tier1_r.htm
http://englishflashgames.blogspot.cz/2008/06/animals-memory-game.html
http://esl.fis.edu/vocab/q21/tier2_r.htm
http://iteslj.org/v/ei/animals.html
http://al.daudet.free.fr/banque/grosdidapages/voc7animaux/
http://testy.mzs-vb.cz/spustit-test.php?id=372
http://www.tolearnenglish.com/exercises/exercise-english-2/exercise-english-5263.php