Answer:
Caerse.
Explanation:
Reflexive verbs are transitive verbs whose action falls on the same subject that performs it.
To conjugate a reflexive verb, the verb is always combined with the corresponding reflex pronoun, which precedes it.
Reflexive verbs indicate that the subject performs an action that falls on itself. For this reason, the reflexive pronoun must always coincide with the subject in person and number.
B. Hace
Hace tres horas que tengo que estar en el trabajo.
