......EXERCICES
http://www.englishexercises.org/makeagame/viewgame.asp?id=3610
https://www.englishclub.com/grammar/verbs-m_future-will.htm
http://www.englishexercises.org/makeagame/viewgame.asp?id=3135
http://www.better-english.com/grammar/willgo.htm
https://elt.oup.com/student/solutions/preint/grammar/grammar_06_012e?cc=global&selLanguage=en
http://www.grammarbank.com/will-vs-going-to-exercises.html