https://www.inglessencillo.com/interrogacion
https://agendaweb.org/grammar/questions-exercises.html
https://www.myenglishpages.com/site_php_files/grammar-exercise-wh-questions.php
https://www.englishexercises.org/makeagame/viewgame.asp?id=1898
https://www.englisch-hilfen.de/en/exercises/questions/word_order4.htm
https://agendaweb.org/vocabulary/daily-routines-exercises.html
https://www.englishexercises.org/makeagame/viewgame.asp?id=2456
https://www.grammar.cl/Present/To_Be.htm
https://agendaweb.org/verbs/to-be-exercises.html
https://www.english-4u.de/en/tenses-exercises/verb-to-be.htm
http://www.eclecticenglish.com/grammar/PresentSimpleToBe1A.html