[
  {
    "sentence": "Yo _____ hablado con él. (haber)",
    "correct": "he",
    "distractor": "ha",
    "explanation": "yo + haber = he.",
    "source_chapter": "39",
    "source_title": "Present Perfect Tense"
  },
  {
    "sentence": "Tú _____ comido demasiado. (haber)",
    "correct": "has",
    "distractor": "ha",
    "explanation": "tú + haber = has.",
    "source_chapter": "39",
    "source_title": "Present Perfect Tense"
  },
  {
    "sentence": "Nosotros _____ vivido aquí cinco años.",
    "correct": "hemos",
    "distractor": "habemos",
    "explanation": "nosotros + haber = hemos.",
    "source_chapter": "39",
    "source_title": "Present Perfect Tense"
  },
  {
    "sentence": "Ella ha _____ una carta. (escribir)",
    "correct": "escrito",
    "distractor": "escribido",
    "explanation": "Escribir is irregular: escrito.",
    "source_chapter": "39",
    "source_title": "Present Perfect Tense"
  },
  {
    "sentence": "¿_____ visto la película? (tú, haber)",
    "correct": "Has",
    "distractor": "Hes",
    "explanation": "tú form is 'has'.",
    "source_chapter": "39",
    "source_title": "Present Perfect Tense"
  },
  {
    "sentence": "John no me _____ ha dicho.",
    "correct": "lo",
    "distractor": "le",
    "explanation": "DOP 'lo' goes before haber along with IOP me.",
    "source_chapter": "39",
    "source_title": "Present Perfect Tense"
  },
  {
    "sentence": "Yo _____ tenido muchos amigos.",
    "correct": "he",
    "distractor": "tengo",
    "explanation": "Use haber + tenido for 'have had'.",
    "source_chapter": "39",
    "source_title": "Present Perfect Tense"
  },
  {
    "sentence": "I have to read = Yo _____ que leer.",
    "correct": "tengo",
    "distractor": "he",
    "explanation": "Obligation uses tener que, not haber.",
    "source_chapter": "39",
    "source_title": "Present Perfect Tense"
  }
]