Answer:
For the first three blanks, I would say use "lo" because, it means 'it', "i can find it if i search well. I think -- where can I find it?". If you just plug the words into the sentence it would all come together! For the last blank use 'la, los,or las" whichever floats your boat :) Explanation:
"parenthesis" JAJAAJA TU PROFESOR ENSEÑA ESPAÑOL PERO NI EL SABE XD
From my Argentina Semester test: The answer is Lartategui
1.the answer is unas(d)
2.the answer is un(b)
Yo le di el libro a mis hermanos.
answer: di