Answer:
The sentence that has a nominative absolute is "The game now being over, the contestants quietly filed out of the room. "
Explanation:
A nominative absolute is a noun phrase that could either begin or end the sentence, this is totally independent and has no grammatical connection with the other parts of the sentence and commonly contains a participle or a participial phrase, "being over" is a participial phrase that is located at the beginning of the sentence and works as a nominative absolute.
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Answer:
I think true but I am not sure
Schaffer's assistant refused to correct the signal. (from The Great Fire by Jim Murphy)