Remember that reflexive verbs need a reflexive pronoun to use (me, te, se, nos, os). It depends on who the verb falls to, a different reflexive pronoun will be used.
As the verb "cepillarse" and "divertirse" are reflexive, they must be added after the verb when the form of the verb is <u>impersonal</u> (infinitive, gerund and participle). In this case "-se".
Yo: soy Tú: eres Él/ella/usted: es Nosotros: somos Vosotros: sois Ellos/ellas/ustedes: son
So... Question 7: Hoy no es domingo. Question 8: Yo no soy rubio. Question 9: Las enfermeras son muy pacientes. Question 10: La familia es muy importante para mi.