linking words

______when I was about 10, I was in the supermarket with my mum.

When we got home, mum looked at my foot again. It looked worse and still hurt a lot. _____ Mum took me to hospital and we found out it was broken.

My mum said, "You can't break a foot just standing on it!" so _____ we went home.

We stopped to look at something, and laughed about it, and then _____ we heard a strange sound and my foot started to hurt.