REVISION OF CONDITIONALS

http://www.shertonenglish.com/resources/es/conditionals.php

http://www.curso-ingles.com/gramatica-inglesa/condic.php




http://www.ecenglish.com/learnenglish/lessons/first-conditional

http://web2.uvcs.uvic.ca/courses/elc/studyzone/330/grammar/1cond1.htm

http://www.1-language.com/englishcoursenew/unit41_grammar_exs.htm

http://www.esltower.com/GRAMMARQUIZ/preintermediate/first%20conditional.htm




https://elt.oup.com/student/solutions1stedition/preint_unit_page/unit6/grammar/exercise2?mode=hub&cc=ar&selLanguage=en

http://www.englishexercises.org/makeagame/viewgame.asp?id=8732

http://angielski.na6.pl/zero_conditional_exercises