Use the simple past or past continuous in these sentences:
I ......(live) in Edinburgh at the time in a fourth-floor flat. It .......(be) about two o'clock and I ...... (sleep). Suddenly, I.......... (hear) a dog barking loudly outside my window. I ...... (get up) and .........(look) out. I ......... (be) still half asleep and it .........(be) very dark but I could see that someone......... (climb) up a ladder towards my bedroom window. I ......... (be) terrified. I quickly .........(phone) the police. When I ......... (hear) a knock on the window, I .......(look) up. There......... (be) my flatmate at the top of the ladder. He......... (wave) and .......(shout), "Let me in. I've forgotten my keys!"