In this link you can find exercises to practise the adjectives ending in -ed or -ing:
https://agendaweb.org/grammar/adjectives-intermediate-2.html
To practise just, already and yet with the present perfect, click here:
https://englishpracticetest.net/present-perfect-with-just-yet-and-already-a2-english-grammar-test/#google_vignette (you need to do the exercises in the white board and then correct them)
https://wordwall.net/es/resource/10732865/present-perfect-just-already-yet
https://www.english-grammar.at/online_exercises/tenses/t102-just-already-yet.htm
https://www.oxfordlearnersdictionaries.com/grammar/online-grammar/present-perfect-simple-with-just-already-and-yet (click on practice)