What does "her" refer to in "her cat"?
"Her" is the possessive form of "she", meaning we use it to show that something belongs to the "she" mentioned. In this case, as they were talking about the Prime Minister, "her" is referring to the Prime Minister. "Her" before "cat" lets us know that the cat belongs to the Prime Minister. Ex: Is that her bag on the floor? Ex: I love her new hair colour. It really suits her. Ex: Her shoes are too small now. She should buy new ones.