Final answer:
The provided sentences were converted from active to passive voice, emphasizing the action over the performer of the action. Key characteristics of the passive voice include the use of 'to be' verbs and past participles, with the option to omit the 'by' phrase when the doer is unknown or unimportant.
Step-by-step explanation:
Rewriting sentences from active to passive voice requires the subject to be acted upon by the verb. Here are the sentences rewritten in the passive voice:
- My purse was stolen by a thief.
- The robbers will be arrested by the police.
- Cars are produced in this factory.
- Breakfast is served at eight o'clock every day.
- Tonnes of rubbish are thrown away every day.
- Coffee is made in Brazil.
- Jim's bike was stolen last night.
- This house was built 200 years ago.
Each sentence now emphasizes the action being performed rather than who is performing the action, which is a key characteristic of the passive voice. When rewriting sentences in passive voice, the use of by can sometimes be omitted if the doer of the action is not specified or important.