听力原文：M: I was sorry to hear about Bill's being fireD.I know he was sick a lot and that he usually,got to work latE. W: Oh, it wasn't that. Bill made a big error in last month's accounting. Even though it wasn't his fault, his boss was very angry. Q: Why did Bill lose his job? (17) A.He got angry with his boss. B.He always got to work latE. C.He was frequently sick and absent from work. D.He prepared a financial report incorrectly.