Read the sentence. someone sang a solo during the holiday concert. the best reason to revise this sentence using the passive voice is that

The best reason to revise this sentence using the passive voice is that the person uttering the sentence is not sure about who sang the solo.

Explanation:

The sentence above does not have a specific subject, the speaker has chosen to use the indefinte pronoun someone. Indefinite pronouns do not refer to any person, amoun, or thing in particular. As the singer is not mentioned at all, it would be better to put emphasis on the solo itself. This can be done by means of a passive construction. The sentence would be as follows: A solo was sang during the holiday.

the name of the singer is unknown

Explanation:

correct on edg 2021

eli whitney was an american inventor best known for inventing the cotton gin. this was one of the key inventions of the industrial revolution and shaped the economy of the antebellum south.

the correct answer is the name of the author of the quotation appears at the text leading up to it   apex 2018