[
  {
    "sentence": "A mí me _____ la pizza.",
    "correct": "gusta",
    "distractor": "gustan",
    "explanation": "Pizza is singular, so use gusta.",
    "source_chapter": "20",
    "source_title": "The Verb Gustar"
  },
  {
    "sentence": "A nosotros nos _____ los tacos.",
    "correct": "gustan",
    "distractor": "gusta",
    "explanation": "Tacos is plural, so use gustan.",
    "source_chapter": "20",
    "source_title": "The Verb Gustar"
  },
  {
    "sentence": "A ellos _____ gusta jugar fútbol.",
    "correct": "les",
    "distractor": "le",
    "explanation": "Plural ellos requires plural IOP les.",
    "source_chapter": "20",
    "source_title": "The Verb Gustar"
  },
  {
    "sentence": "Me _____ bailar y cantar.",
    "correct": "gusta",
    "distractor": "gustan",
    "explanation": "Multiple infinitives still take singular gusta.",
    "source_chapter": "20",
    "source_title": "The Verb Gustar"
  },
  {
    "sentence": "A Juan _____ gusta el café.",
    "correct": "le",
    "distractor": "lo",
    "explanation": "Gustar requires an IOP (le), not a DOP.",
    "source_chapter": "20",
    "source_title": "The Verb Gustar"
  },
  {
    "sentence": "_____ ti te gustan las películas.",
    "correct": "A",
    "distractor": "Para",
    "explanation": "Clarification structure uses a, not para.",
    "source_chapter": "20",
    "source_title": "The Verb Gustar"
  },
  {
    "sentence": "A María le _____ los gatos.",
    "correct": "gustan",
    "distractor": "gusta",
    "explanation": "Gatos is plural; verb agrees with the subject.",
    "source_chapter": "20",
    "source_title": "The Verb Gustar"
  },
  {
    "sentence": "Me _____ hablar contigo.",
    "correct": "gusta",
    "distractor": "gustan",
    "explanation": "Hablar is a singular infinitive.",
    "source_chapter": "20",
    "source_title": "The Verb Gustar"
  }
]