听力原文:W: At what age do children start school in your country? M: At five. How about in your country? W: At six. Do boys and girls go to school together? M: Yes, they do. And I think it's a good idea. W: Do some children go on to university? M: Yes, they do. W: What examinations do they take first? M: 'O' levels and 'A' levels. W: Oh, but in our country they take 'O' levels and 'H' levels. How long do they usually stay at university? M: Three or four years. When do children start school in the man's country?