For practicing PAST SIMPLE:
https://www.perfect-english-grammar.com/past-simple-exercise-8.html;
https://agendaweb.org/verbs/past_simple-exercises.html;
For practicing PAST CONTINUOUS:
https://www.perfect-english-grammar.com/past-continuous-exercise-1.html;
https://www.perfect-english-grammar.com/past-continuous-exercise-3.html;
https://agendaweb.org/verbs/past_progressive-exercises.html;
For practicing PAST SIMPLE vs PAST CONTINUOUS:
https://www.englisch-hilfen.de/en/exercises/tenses/simple_past_progressive.htm;
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://agendaweb.org/verbs/past-continuous-past-simple-exercises.html.