Final answer:
The ablative of means in Latin indicates the means by which an action is performed without using a preposition. Active voice is achieved by making the subject the doer of the action, and intransitive verbs don't require a direct object but may include adverbs for completeness.
Step-by-step explanation:
The ablative of means or instrument is a grammatical case used primarily in Latin to express the means or instrument by which an action is performed. It is characterized by the absence of a preposition. When translating Latin to English, an ablative of means could be rendered with phrases using 'by' or 'with.' For instance, in the Latin sentence 'Puella cera scribit,' which means 'The girl writes with a wax tablet,' the noun 'cera' (wax tablet) is in the ablative case and shows the means by which the action is performed.
To eliminate passive voice, one should make the subject perform the action. Converting a sentence from passive voice to active voice involves shifting the object of the preposition to the subject position. For example, the passive sentence 'The problem was solved by the students' can become active by saying 'The students solved the problem.' Occasionally, using passive voice might be preferable when the focus is on the action's recipient or when the doer is unknown.