A: Let me tell you what happened to my homework. B: OK, go ahead--what is the excuse THIS time? A: Actually, I did it, but then it got lost. B: Could you have gotten it done at another time? A: Yes, I could. B: You have never missed an assignment before--when will you be making this one up? A: I'll make it up early next week. B: That would work, but don't let it happen again. A: I'll try. B: That will solve it then. Let's work hard to not let it happen again.