Use the correct form of the verb ser or estar: Ellos __________ ingenieros. When entering your answers for fill in the blank and essay questions, please 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 ¿ ¡ Answer for Blank 1: