Answer:
están en la fiesta de cumpleaños
Anita: Hello, Christina, hello Ernesto! Welcome to the party!
Christina: Hello, Anita! Happy birthday!
Ernesto: Hello, Anita! Where do we have to put (put) the gifts?
Anita: Aye, I'm sorry! You can put them in the living room.
Ernesto: Well, you have to give me your present, Christina. I'm going to put them in the living room.
Anita: Thank you, Ernesto! After that, you have to go to the dining room. Let's go eat pizza!
Explanation: