Раскройте скобки, используя Past Simple or Past Continuous

when I openев the cupboard door, a pile of books fell out.

I was walking along the street when I suddenly felt something hited me in the back. I did not know what is it.

We went to London yesterday, but on the way we heard about a bomb scare in Oxford Street. So we drove back home straight away.

Something very strange happened to me on my way home from work yesterday afternoon. I was driving along the bypass at the time.Suddenly I saw my mother in the seat beside me. But she died three years ago.

When my mother saw me I was playing with the mud