Passive voice review

Choose the best passive voice sentence.
Options: She is calls by her mom., She calls by her mom., She is called by her mom., She called by her mom.

A letter __________ (write) by Luisa. PRESENT PASSIVE VOICE.

Disco _________ (dance) in the 80s by my parents. PAST PASSIVE VOICE.

Change the following sentence into passive: They watched the news.

Change the following sentence into active: English is studied by the kids.

Laura and Peter were introduced _______________.

Read carefully the active voice and write the correct agent of the sentence in passive. She feed the cats. / The cats are fed _________.

Which sentence is correct?
Options: They are caled teleamazonas., They are called by teleamazonas.

Which sentence is incorrect?
Options: Caroline cook dinner., Caroline cooks dinner.