Forms 8a, 8c. Past Simple vs Past Continuous. Used to/would/past simple

 For practicing:

https://www.perfect-english-grammar.com/past-simple-past-continuous-exercise-1.html;

https://www.perfect-english-grammar.com/past-simple-past-continuous-exercise-2.html;

https://www.ecenglish.com/learnenglish/lessons/past-simple-vs-past-continuous;

https://www.esl-lounge.com/student/grammar/2g50-past-simple-or-past-continuous-worksheet.php;

https://speakspeak.com/english-grammar-exercises/intermediate/past-simple-or-past-continuous;

https://www.focus.olsztyn.pl/en/exercises-past-continuous-test-2.html;

https://learnenglish.britishcouncil.org/grammar/intermediate-to-upper-intermediate/past-habits-used-to-would-and-the-past-simple;

https://www.englishgrammar.org/or-simple/.

Forms 6a, 6c. Future forms

 For practicing:

https://test-english.com/grammar-points/b1/future-forms/;

https://test-english.com/grammar-points/b1/future-forms/2/;

https://test-english.com/grammar-points/b1/future-forms/3/;

https://www.tolearnenglish.com/exercises/exercise-english-2/exercise-english-6874.php;

https://www.english-4u.de/en/tenses-exercises/future.htm.