Final answer:
The sentences provided were converted to passive voice by rearranging them so the subject receives the action and including a form of the verb 'be' with the past participle of the main verb. The tenses were identified as future simple, present perfect, and past continuous, respectively.
Step-by-step explanation:
To convert sentences from active voice to passive voice, we need to identify the tense and rearrange the sentence so that the subject is being acted upon rather than doing the action. Here are the passive versions of the given sentences:
- 1. Solar farms and wind turbines will generate electricity in the future. (Future Simple Tense)
Electricity will be generated by solar farms and wind turbines in the future. - 2. Richard's lion lights have protected crops from elephants. (Present Perfect Tense)
Crops have been protected from elephants by Richard's lion lights. - 3. The people were cleaning the swimming pool yesterday. (Past Continuous Tense)
The swimming pool was being cleaned by the people yesterday.
These passive constructions show that the subjects of the sentences—electricity, crops, and the swimming pool—are the recipients of the actions rather than the performers.