Question

select the misplaced or dangling modifier.
nervous, the comedian contemplated the room full of bored-looking audience members exhibiting a sense of dread.
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Explanation:

A misplaced/dangling modifier incorrectly attaches to the wrong noun. Here, "exhibiting a sense of dread" is placed next to "audience members," but the context shows it should describe the nervous comedian, making it misplaced.

Answer:

exhibiting a sense of dread