A: It's time to start work. B: Okay, where do we start? A: The best place to start is the roof. B: The roof? Isn't that dangerous? A: Don't be afraid. As long as we're careful, we'll be alright. B: But I'm afraid of heights. A: I'll be there. Like I said, we'll be okay. B: Okay, I trust you. A: A good roof is very important. If it leaks, it can ruin the interior. B: Yes, I know. Remember Uncle Joe's house? A: I sure do. Let's get started. B: Okay. I'm ready.