Complete the frustrated landlord's observation of the messy roommates.

When I looked through the window at 8 PM, Marcus was playing video games at maximum volume while Dave was eating pizza on the supposedly clean sofa.

When I looked through the window at 8 PM, Marcus was playing video games at maximum volume while Dave was eating pizza on the supposedly clean sofa.

Use the past progressive for actions that were ongoing at a specific time in the past (like 8 PM). When two continuous, ongoing actions happen at the exact same time, we use the past progressive for both (was playing and was eating).