Vídeo com explicação: https://www.youtube.com/watch?v=J8hRhkDKTCo
Link 1: http://www.englisch-hilfen.de/en/exercises/various/imperative.htm
Link 2: http://www.englishexercises.org/makeagame/viewgame.asp?id=4594
Link 3: https://english.lingolia.com/en/grammar/verbs/imperative/exercises
