15: A
16:D
17: C
18: A
19: C
20:D
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:
<span>A. M</span>il novecientos ochenta y nueve (1989) is the answer.
In Spanish that phrase can be used as permítame.