Complete the text with the past simple, past perfect or past continuous.

We ____ (just/move) to a new house. One night, after all the others ____ (go) upstais to bed, I ____ (watch) TV in the living room. It was a warm summer night so we ____ (leave) some of the upstairs windows open. I ____ (begin) to fall asleep in front of the TV when ____ (hear) footsteps coming from my brother's room outside the window. I ____ (look) out and i ____ (see) my brother - he ____ (lie) outside on the grass... while he ____ (sleepwalk), he ____ (fall) out of an upstairs window and he ____ (land) on a pile of leaves... and he ____ (not wake up)! When my parents ____ (come) downstairs to see what ____ (happen), he ____ (still/snore)!

Помогите, спасибо!​