<span>a modifying phrase consisting of a preposition and its object. i think that is what you mean
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The Great Wall of China is an example of a wall used to protect a place.
The Berlin Wall is an example of a wall to keep two places separate, east and west Germany.
An indefinite pronoun is a pronoun that doesn't refer to a person or thing in particular so i'm going to say C. each
Answer:
Explanation:
1) Friends, casual conversation, running into each other by surprise
2) Speaking to a marriage officiant, very formal conversation at a wedding
3) Father speaking to daughter OR husband speaking to wife, phone call, casual but loving language
4) Doctor/patient conversation, sick-child visit, business language
5) Speaking to potential future boss, job interview, professional language