F 7 Grammar

Past simple
 https://www.perfect-english-grammar.com/past-simple-exercise-8.html

Past continuous
https://www.english-4u.de/en/tenses-exercises/past-progressive.htm

Past simple vs past continuous
https://www.englishgrammar.org/simple-or-continuous-tense-exercise-2/
https://www.ego4u.com/en/cram-up/grammar/simpas-paspro/exercises?ex04