Conditionals

http://www.curso-ingles.com/ejercicios-test-ingles/condic.php
http://wwwedu.ge.ch/cptic/prospective/projets/anglais/exercises/condit4.htm
http://www.nonstopenglish.com/allexercises/grammar/grammar-conditional.asp
http://www.tolearnenglish.com/english_lessons/conditional-sentences-exercises
http://www.englishpage.com/conditional/conditionalintro.html

http://www.juntadeandalucia.es/averroes/ipfacadiz/INGLES/2bejrein/2BEjReIn.htm
http://www.ejerciciodeingles.com/ejercicios-estructuras-condicionales-rellenar-huecos/
http://www.ego4u.com/en/cram-up/grammar/conditional-sentences/exercises?03