Answer:
In the passive voice, the sentence becomes:
Portuguese is spoken in Brazil.
Step-by-step explanation:
Changing a sentence from the active to the passive voice follows a few rules:
1. The subject of the active voice becomes the agent of the passive voice. If the agent it is important for the meaning of the sentence, it comes preceded by the preposition "by". However, when the subject is "they" or "people", referring to persons in general, it is not mentioned in the passive voice.
2. The object of the verb in the active voice becomes the subject in the passive voice. In the sentence we are studying here, it is "Portuguese".
3. The verb tense is not changed, but we should include the auxiliary "be". In the sentence "People speak Portuguese in Brazil," the verb tense is the simple present, the main verb being "speak". In the passive voice, we add "be" in the simple present and change the main verb to its past participle form - "is spoken".
Following those rules, we have:
- People speak Portuguese in Brazil.
- Portuguese is spoken in Brazil.