The only thing i would change is the word “ir” into the word “vaya.” it’s grammatically correct. besides that you did a fantastic job!
<h2>Cambia el verbo en negrita y escríbelo en el presente perfecto. Change the verb in bold and write it in the present perfect.</h2><h3><em>Mariana, ¿nunca viste (2 palabras) las ruinas de Machu Picchu?</em></h3>
Answer : Mariana, ¿nunca has visto las ruinas de Machu Picchu?
Translation : Mariana, have you ever seen the Machu Picchu ruins?
Hope this helps!

The answer with the camels should be vhile! Hopefully its right
Marta va al depósito de grúa a recoger su auto