Final answer:
The question asks to complete sentences with the correct form of ser or estar. In this case, the correct form is estar as it refers to the location of La Patagonia.
Step-by-step explanation:
The question is about completing sentences with the correct form of the verbs 'ser' or 'estar'. In this case, we need to determine the correct form of 'estar' to fill in the blank. Since 'La Patagonia' refers to a location and we use 'estar' to talk about the location of things, the correct form is 'está'. Therefore, the sentence should be 'La Patagonia está en el sur de Argentina'.
Learn more about Spanish Verbs