Jack: I called you this morning, but there was no answer.
Willy: Really? What time did you call me then?
Jack: At about (5)
Willy: 6:30? Oh, I (6) a shower at that time, so I
didn't answer your phone. Why did you call me?
Jack: I (7) a math workbook in my schoolbag and it is yours.
Willy: Oh, thank you very much. I (8) last night, but
I couldn't find it.
Jack: That's OK. Let me give it to you this afternoon.