Answer:
For this exercise we have to re-write the sentences with the conditional in past
Step-by-step explanation:
The conditional in past is used to express an imaginbary situation in past and how you would have reacted to that situation or what you would have done , this is a hypothetical situation and unreal, because it imposible to change the past. To form a sentence in this tense we need to use the verb haber conjugated into habría and a verb in past participle (ado or ido for regular verbs)
1. Mis padres y yo pusimos música folclórica en la fiesta. (poner música rock)
Mis padres y yo habríamos puesto rock (My parents and I would have played rock)
2. La noche antes del examen, miré un programa de concursos. (estudiar cuatro horas)
Yo habría estudiado cuatro horas (I would have studied four hours)
3. Mi abuela estuvo en el hospital y no la visité. (llevarle flores)
Yo la habría llevado flores (I would have taken some flowers for her)
4. El martes mis amigos y yo dejamos la tarea en casa. (no olvidarse de traerla)
Yo no me habría olvidado de traerla (I would not have forgoten to bring it)
5. Bajaba por la escalera y me caí. (tener más cuidado)
Yo habría tenido más cuidado (I would have been more careful)