20 points with question in picture

What is the meaning of the word checking as it is used in this sentence from the second paragraph of the passage?

June and sylvio speak to mr. teller in the driveway of their farmhouse. it is raining hard, and they all carry umbrellas. a dog sits on the steps of the house. june: we didn’t think you’d be coming back for the puppy. mr. teller: i said i would when i dropped the puppy off. sylvio: yes, but that was months ago. we thought you’d be back for the puppy in a couple days. now she’s a full-grown dog. we have raised her ourselves, we built her her own doghouse, and we love her. mr. teller: but she’s my dog. i only dropped her off at your house for safekeeping since i had to go out of town on business. now i’m back and i want my dog back. what is the setting of this play? a basket a farm a doghouse a trip

Me i need a correct answer how did mlk jr.’s “voice” in his speeches shape the civil rights movement?