11: Iban
12: Íbamos
13: Veían
14: Éramos
Hope this helped, good luck ⚡️
Answer:
Mi abuelo es extrovertido, pero mi abuela es introvertida. mi prima Rosa tiene pelo
Translating the sentence, we get something along the lines of Raul ____ the pen to write. There's one word we can see falls into the blank, and that's used. Now all wee need to do is translate used into Spanish. One way to say used in Spanish is usado, so usado is the word that best completes the sentence.