Past Continious and Past Simple

My car (break) down when I (drive) to work.

When she (look) out of the window, it (snow) heavily.

She (drop) her bag when she (run) for a bus.

We (walk) in the park when it (start) to rain.

I (see) a shark when I (swim) in the sea.

When I (open) the door, a friend (stand) there.

When Ken (come) home, Kate (make) some tea.

I (cut) myself when I (shave).

My brother (sleep) when our father (arrive) home.

We (go) down in a lift when suddenly it (stop).