Question

highlight who/what the action is being done to (\the receiver\).
resalte a quién/a qué se dirige la acción (\el receptor\).
last wednesday, rafiki finally did his laundry.

Explanation:

In the sentence "Last Wednesday, Rafiki finally did his laundry", the action "did" (doing laundry) is directed towards "his laundry". We need to highlight the receiver of the action, which is "his laundry".

Answer:

his laundry