<h3>Cambia el verbo al futuro perfecto. Change the verb to the future perfect. (clue: there are two parts to the verb)</h3><h3>En el futuro, los carros quizás (volar-2 palabras) en el aire o navegarán en océano.</h3>
Answer : En el futuro, los carros quizás habrán volado en el aire o navegarán en el océano.
Translation: In the future, perhaps the cars will have flown in the air or will sail in the ocean.
Explanation: the action of the verb "volar" will be performed by "los carros", this is a third plural person, so the verb must be conjugated in this form. Ellos habrán volado.