Hey, NB2 students. Do you want to practise with the past? Perfect. Then, let's do it. First, let's try past simple or past continuous?, by Nuria Ortiz
Then, why don't we have a look at Past Continuous - Describing past events ( activity), by olgavai
Find this and other past continuous exercises in English Exercises .org

And now let's have a good time listening to this beautiful song