Answer:
Words and phrases can be repeated by a storyteller for effect.
Step-by-step explanation:
The given sentence has been transformed from active voice to passive voice. In the active voice, the subject performs the action, while in the passive voice, the subject receives the action. In this case, the subject "storyteller" in the active voice has become the object "words and phrases" in the passive voice, and the verb "repeat" has been changed to "can be repeated". The resulting sentence emphasizes the action of repeating words and phrases, rather than who is doing it.