Am i correct on 11- these are spanish btw

Completa la oración con la voz pasiva con se. used cars for sale. carros usados.

What are some things that your friends did this week? write 5 complete spanish sentences describing what they did. don't forget to conjugate your verbs in the preterite tense! (use only -er verbs) pay attention to (a) use of correct preterite form of the verb, (b) appropriate vocabulary usage, and (c) overall quality of each response. *note: this is a practice activity. completing this activity will not only prepare you for future tests and assessments but, more importantly, it will enhance your language ability. this activity will not count towards your grade.

Prefer it or imperfect: una noche yo (mirar) a in fantasma en casa de mis abuelos