Use the Past Continuous to indicate that a longer action in the past was interrupted. The interruption is usually a shorter action in the Simple Past. Remember this can be a real interruption or just an interruption in time.
Thanks
Top answer
An interruption in time: I was washing the dishes when she arrived. A real interruption: I was washing the dishes when I collapsed.
— Mister Micawber
An interruption in time: I was washing the dishes when she arrived.
A real interruption: I was washing the dishes when I collapsed.
Free · every Monday
Get the Weekly English Kit 📬
New words, one handy idiom, and a 2-minute quiz — delivered to your inbox to keep your streak alive.