Hello,

If you need more practice on the past continuous, you can find some more exercises on the webs below.

https://elt.oup.com/student/englishfile/preint3/grammar/file02/?cc=global&selLanguage=en
http://www.perfect-english-grammar.com/past-simple-past-continuous-exercise-1.html
https://www.englishpage.com/verbpage/pastcontinuous.html
http://www.englishexercises.org/makeagame/viewgame.asp?id=734
https://www.test-english.com/grammar-points/a2/past-continuous-past-simple/3/

Enjoy your holiday and Happy New Year!!