What conjunction should you use to make these sentences into a compound sentence? The Doctor always enjoyed meeting new people. He also loved time traveling. 

What is the definition of the conjunction "but"?

(Because, Before) we get started, let's introduce ourselves. 

I sat on the bench while Mother and Punch went into the room. I was a little worried about Punch, but I knew that he would get good care. As I waited I watched a tiny puppy wander toward the lady with a cat in a crate. The lady at the desk talked to a man with who was buying medicine. wife. "Honey, I did it again." Mr. Rosencrantz heard Mrs. Thomas yelling at Mr. Thomas in a distorted high-pitched squeal. "Yes, dear. I'm so sorry. I'll see you soon," Mr. Thomas returned the phone, sighed deeply, and ran his fingers through his hair. Where am I?

Marcus looked around and wondered (where, wherever) everyone had gone. 

Tex opened the can of peaches with his knife and cooked them over the fire. He shared them with his buddy Dusky and they told stories of stampedes and bandits until they tired of talking. Tex took off his boots and unrolled his blanket. He didn't mind sleeping under the stars. He put his hat over his face and fell asleep with his head on his pack. During the night a scorpion found itself next to Tex. The scorpion was very tired and, unlike Tex, the scorpion did not want to sleep under the stars. He liked small dark places, like Tex's boot. He crawled into the front of Tex's boot and fell asleep. When Tex awoke in the morning, he couldn't wait to get a jump on the day. He put on his hat, clicked on his belt and gun holsters...what happened next?

Which conjunction should you use to connect the following sentences? May loves to compete. She entered a beauty contest.

The Clerk made the new keys (while, if) we waited. 

The room was dark and quiet. We heard Carl and his mother come in the front door talking. I heard two girls in the corner giggle nervously. Another girl told them to be quiet. I hid behind the table where the cake and presents were set out. The tension in the room grew as we waited for them to open the door. Where am I?

I arrived early for my appointment. The place was busy and smelled of chemicals. I found a place to sit and wait. The lady next to me had a towel around her head. I heard a blow dryer in the distance. It was loud over the music that was playing. Where am I?

Cameron threw the rope into the field. It landed near the creek. Doris did not wait for the rope to land. She darted out into the field and picked the rope up off the ground with her teeth. If she had been a little bit faster, she might have beaten the rope to its landing spot. She brought the rope back to Cameron, released it, and then started barking. Cameron patted Doris on the head and praised her. Then he wound up and threw the rope as hard as he could. The wind must have caught the rope too, because it just kept moving. It landed in the middle of the creek...what happens next?