Answer: quería
Explanation:
Using past (preterite) tense, you conjugate the verb “querer” (it means ‘to want’), and it makes sense to say:
Tú quería hacer un viaje por Argentina
<u>Or, if you want to say it in English</u>
You wanted to take a trip around Argentina.
Hope this helps! :)
I think it’s true, if I’m not mistaken.