Preterit simple ou preterit en BE+ING ?

Gap-fill exercise

Fill in all the gaps, then press "Check" to check your answers. Use the "Hint" button to get a free letter if an answer is giving you trouble. You can also click on the "[?]" button to get a clue. Note that you will lose points if you ask for hints or clues!
What a night !

I (watch) TV and (relax) when my wife (call) me.
She (cry)!!!
I immediately (think*) that something terrible had happened. She (tell*) me to go to the kitchen and when I (get*) there, a mouse (run) around !
I (open) the door and it (leave*).
It (be*) late and my son (sleep). I (switch) off the light in his bedroom, but he (hear*) me and he up (wake*). So, I (decide) to read him a story.
2 minutes later, I realized that he (sleep) so I (go*) to bed too. My wife was asleep and she (snore) !

-snore = ronfler

RAPPEL:
Preterit simple = -ed ou 2ème colonne des verbes irréguliers (voir liste)
Preterit en BE+ING = BE au preterit (was ou were) + Base verbale avec ING