Final answer:
The correct sentence from the given options is 'b. I, uh, went to the gym yesterday.' Commas denote the speaker's hesitation rather than dashes, and the other sentences have been corrected to conform to standard comma usage.
Step-by-step explanation:
The correct sentence is: b. I, uh, went to the gym yesterday. The use of commas here indicates a brief pause or hesitation, accurately representing the speaker's interruption of speech, which is common in casual conversation. Now, let's review some sentences for proper comma usage:
- I finally found my keys, and I got to work just in time.
- Mrs. Contreras threw out her old coffee table and cleaned the carpet.
- Taking the elevator to the roof, we hoped we could see the skyline and the bay.
- Though Susan wasn't feeling well, she went to the store anyway and bought ice cream, pizza, and candy.
- I let my neighbor borrow my phone because she said hers was tapped by the police.
In each example, commas are placed to separate independent clauses joined by a coordinating conjunction, eliminate ambiguity, set off introductory elements, and list series of items as per conventional English grammar rules.