Use the correct form of the verb ser or estar: ellos en la fiesta de quinceañera. when entering your answers for fill in the blank and essay questions, be sure to use accent marks and/or correct punctuation to avoid your answer being marked incorrect. you may copy and paste the accented character or punctuation mark from this list if needed: á é í ó ú ñ á é í ó ú ¿ ¡