In careful and elaborated speeches, stops need to be aspirated. So when you slow down, make sure not to hold them or skip them. esp. in 686, the k and when are not in the same clause, I think it's perfectly fine to aspirate it. I went back to the original recording, the k was aspirated there.
Lesson 46: Dangerous Experiences
676. I slipped on some ice and broke my arm.
677. The car accident(stress seems off) almost killed my brother.
678. She almost fell into the tiger cage.
679. That rock just missed my head.
680. I almost didn’t see that bus(sounds like bars a little bit) coming.
681. He’s very lucky to have survived the war.
682. I’m worried about him because he works in a prison.
683. Mountain climbing is exciting because it can be dangerous.
684. Steve drives too fast and takes too many risks.
685. Ann was in the hospital for six weeks after getting hurt.
686. I was driving to work when a huge truck ran a red light.
687. I’m sorry you had to go through that.
688. There were always bombs and gunfire all around us.
689. My stomach would have been full of butterflies(sounds a little bit like bartterflies). (linking l with the following vowel will give you a better L)
690. I’ve never been so scared in my life, and my entire life flashed before my eyes.