Question

Esceva na voz passiva as frases:

The man brushes the teeh:
The knife cu the finger :

The dentist examines the tooth: 

Answer 1

The teeh is brushed by the man
The finger was cut by the knife
The tooth are examined [by the dentist] pode ocultar ou nao o agente da passiva, nesse caso.

Espero ter ajudado