https://idiomas.gcfglobal.org/es/curso/ingles/gramatica/uso-de-will/

https://www.ego4u.com/en/cram-up/grammar/future-1-will

http://elblogdelingles.blogspot.com/2006/03/lesson-12-futuro-con-will.html

https://agendaweb.org/verbs/future-will-exercises.html

http://elblogdelingles.blogspot.com/2006/03/lesson-11-i-am-going-to.html

http://www.agendaweb.org/verbs/future-be-going-to-exercises.html 

http://www.mansioningles.com/errores-gramaticales-ingles/diferencia-uso-will-going%20to.htm

https://www.curso-ingles.com/aprender/cursos/nivel-intermedio/verb-tenses-future/future-simple

http://www.agendaweb.org/verbs/future-exercises.html

https://www.perfect-english-grammar.com/zero-conditional.html

https://web2.uvcs.uvic.ca/courses/elc/studyzone/330/grammar/0cond1.htm

https://agendaweb.org/verbs/conditional-verbs-exercises.html

https://www.ejemplos.co/25-ejemplos-de-first-conditional-en-ingles/

https://www.aprenderinglesrapidoyfacil.com/2014/04/22/primer-condicional-ingles-explicacion-first-conditional/

https://agendaweb.org/verbs/conditional-first-exercises.html

https://www.englisch-hilfen.de/en/exercises/if_clauses/type_1_statements.htm

https://www.turtlediary.com/game/fill-in-the-blanks-with-future-tense-verb.html

http://eslgamesworld.com/members/games/ClassroomGames/Billionaire/Conditionals%20Billionaire%20Game/index.html