Prepositional phrases can serve as transitional tags to announce the passage of time and to describe a person, place, or thing. However, they are not typically used to indicate how someone speaks or to connect short, choppy sentences. Therefore, the correct usages in this context involve time and descriptive elements. ;
Prepositional phrases function as transitional tags by announcing the passage of time and describing a person, place, or thing. They do not typically indicate how someone speaks or connect short sentences. The correct options are B and C.
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