Day 52. Past Continuous

Hi there! Our topic today is still Past Continuous. Actually, this tense is also called Past Progressive. And we are going to do some exercises! Are you ready?
http://www.englishpage.com/verbpage/pastcontinuous.html
http://www.myenglishpages.com/site_php_files/grammar-exercise-past-progressive.php
https://www.ego4u.com/en/cram-up/grammar/past-progressive/exercises
http://www.perfect-english-grammar.com/past-continuous-exercise-1.html