Hairuddin Omar, a maths teacher, has written four emails this morning. Read the descriptions of the emails and then match them to the opening lines of the emails. 数学老师Hairuddin Omar今天早上已经写了四封电子邮件。请阅读电子邮件的描述，然后将它们与电子邮件的开头进行匹配。 A. Hairuddin emailed a man called Norozan Bakar, the father of a pupil at the school. He wanted to know whyMr Bakar’s son was absent from school. B. Hairuddin emailed all the maths teachers at his school about some training. C. Hairuddin wrote to his friend about their plans to play football at the weekend. D. Hairuddin sent an email asking for more information about a conference. He did not know the name of the person who will read his email.