1. I saw Oliver last week.
2.Geoff called me when I was watching TV.
3.He was walking to school when he saw something strange.
4.I used to live in London but I'm living in Glasgow now.
5.When Sam was younger he played with the girl next door.
6.I didn't used to like travelling but I'm loving it now.
7.What did you do between eight and ten o'clock yesterday?
8.When mum was younger she was more careful than she is now.
ну все.запятые ж сам(а) расставишь?