Complete the passive-aggressive sticky note left on the shared apartment fridge. Select the correct word to fill in the blank.

That mysterious green Tupperware container has been sitting on the bottom shelf _____ last November.

The correct answer is since.

We use since to refer to a specific starting point in the past (like "last November", "Tuesday", or "2015"). Because the container's stay in the fridge started in November and continues to the present, "since" is the perfect fit!