Exploring Grammar (Units 5-8) Past continuous vs Past simple

a) Read the email below and find verbs in the past continuous. Which verb form is used:
- for a past action which was in progress when another past action interrupted it?
- to give background information?

b) Which time expressions do we use with this tense?

Dear Joan
Hi! How are you? I came across this amazing site on decoration while I was surfing the net the other day. When we talked as week remember that you were thinking of redecorating the kids room but had no idea what to do. Check this out; I'm sure you'll find it very useful. Talk to you soon!

Helen
PS John found a nice flat. He sold his old furniture and moved in last Saturday. He is going to have a party next weekend. I think it'll be fun.

www.idecoratideas.com
Decorating your kid's room - Storybook style! Would you like your kids to have the cutest and most colourful room possible? Follow our tips and we promise that you will have great fun! You are going to need some paint and a lot of imagination! But before that, think of some practical matters. A room in red, blue and yellow look cosier and warmer than a room that is green or pink. Also, kids always move freely and easily in a room that has some order. Why don't you divide the room into activity areas for playing, sleeping, doing artwork or whatever? Click here to get some more exciting ideas!​