Exercícios online
Present Perfect
www.ego4u.com/en/cram-up/grammar/present-perfect-simple/exercises?04
www.ego4u.com/en/cram-up/grammar/present-perfect-simple/exercises?05
www.ego4u.com/en/cram-up/grammar/present-perfect-simple/exercises?07
www.ego4u.com/en/cram-up/grammar/present-perfect-simple/exercises
www.englishpage.com/verbpage/presentperfect.htm
https://cerquella.com/bilingual/deploy/Unit2/vocabulary_2.html
https://www.englishexercises.org/makeagame/viewgame.asp?id=736
https://home.nordnet.fr/~rmaufroid/pupitre/description/FourLadies%201.htm
Past Simple
https://www.myenglishpages.com/site_php_files/grammar-exercise-simple-past.php#.UlLuKlDrzy0
https://www.englishgrammarsecrets.com/pastsimple/menu.php
https://www.ego4u.com/en/cram-up/grammar/simple-past
https://www.perfect-english-grammar.com/past-simple-exercise-7.html
https://www.englisch-hilfen.de/en/exercises/tenses/simple_past_mix.htm