http://elt.oup.com/student/solutions/preint/grammar/grammar_06_012e?cc=global&selLanguage=en http://perso.wanadoo.es/autoenglish/gr.gowil.p.htm http://www.englishgrammarsecrets.com/goingtoorwill/exercise1.html http://www.englishgrammarsecrets.com/goingtoorwill/exercise2.html http://www.englishgrammarsecrets.com/goingtoorwill/exercise3.html

http://www.englisch-hilfen.de/en/exercises/tenses/will_going_to_future.htm