The complete order with the correct choice is Encienda el auto después de usar el cinturón de seguridad.
In this question, we must fill the blank with a conjugated form related to impersonal orders, verbs in impersonal orders are in 3rd form in singular (él/ella). Now we proceed to present the complete order with the correct choice:
Encienda el auto después de usar el cinturón de seguridad.
We kindly invite to check this question on sentences in Spanish: https://brainly.com/question/22046418
