http://www.5percangol.hu/cikk/conditionals_2_felteteles_mod_2_/

http://learnenglish.britishcouncil.org/en/grammar-reference/wish-and-if-only

http://www.usingenglish.com/quizzes/68.html



http://www.ego4u.com/en/cram-up/grammar/relative-clauses

http://learnenglish.britishcouncil.org/en/grammar-reference/verbs-followed-%E2%80%98ing%E2%80%99-or-%E2%80%98-infinitive%E2%80%99-2


http://idioms.thefreedictionary.com