Answer:
- b) passive voice
- a) active voice
- a) active voice
- b) passive voice
- a) active voice
Step-by-step explanation:
Passive voice is used to emphasize the result of an action rather than who performs it, called agent. It is used with the correct tense and form of the verb to be and the verb in the past participle. In that matter, in active voice, the subject performs the action of the verb, while in passive voice the subject receives the action of the verb. In passive voice, the agent who carries out th action of the verb is introduced with the preposition by.