P219 Estructura 1 De Quién Es Practice It Hot The Spanish phrase de quién is a fundamental tool for expressing possession. When you want to know who owns an item, this is the structure you must master. In many digital learning platforms and textbooks, such as those used in Practice It exercises, Estructura 1 often focuses on the marriage between the preposition de and the interrogative word quién. Understanding the Grammar

In Spanish, you don't use 's. Instead of "Tomás's house," you say "la casa Contractions: