If you’re trying to correct the sentence this would be the correct answer:
Sí lo sé, sabía que necesitaba una cirugía en la rodilla.
Answer:
diptongo
caos, puerta, Europa, oeste, cielo, oblicuo, Asia, teorema, peinado, puerto, junio, hay, astronauta, afeitarse
Hiato
frío, bahía, país, filosofía,
Answer:
educated / educado
Explanation:
he or she wants to educate themselves about another culture and country to be polite about it and its people.