6º: Unit 5: Modals, -ed and-ing adjectives

 Modal verbs:

https://www.englishtestsonline.com/modal-verbs-test-b1-grammar-exercises/

https://usefulenglish.ru/grammar/modal-verbs-exercise-eight

https://www.eltbase.com/quiz/241_01.htm

https://www.eltbase.com/quiz/241_02.htm

https://www.eltbase.com/quiz/241_03.htm

-ed and -ing adjectives:

https://test-english.com/grammar-points/b1/ed-ing-adjectives-adjectives-verbs/    (3 exercises)

https://agendaweb.org/exercises/grammar/adjectives/-ed-ing-1

https://agendaweb.org/exercises/grammar/adjectives/-ed-ing-2

https://agendaweb.org/exercises/grammar/adjectives/adjectives-ed-ing