Advendikalender
https://bit.ly/nipitiri-wordsearch.
Watch a video
https://en.islcollective.com/video-lessons/simons-cat-christmas-presence-basic-adjectives
A game
http://www.freewebarcade.com/game/winterbells/
Present perfect
https://www.englisch-hilfen.de/en/exercises/irregular_verbs/fill_in.htm
https://www.englisch-hilfen.de/en/exercises/irregular_verbs/crossword_8_10.htm
https://agendaweb.org/exercises/verbs/present-perfect-2
https://www.ego4u.com/en/cram-up/grammar/present-perfect-simple/exercises
https://www.englishexercises.org/makeagame/viewgame.asp?id=2998
Past simple and present perfect
https://www.englisch-hilfen.de/en/exercises/tenses/simple_past_present_perfect.htm
https://www.ego4u.com/en/cram-up/grammar/simpas-preper/exercises?ex07