Hello, Mr Chen ! I am writing to say sorry to you. Yesterday in you lecture I happened to get terrible sick so Ipay no attention to your lecture . Anyway I should do as you tell us but then I really could not bear the suffering . I missed most of your lecture and I think it a pity . But I think I will work hard to make up for the missing part .I would appreciate it if you can accept my apology and tell me what to do to make up for my missing lesson. I am looking forward to your reply.
Yours.
Lihua.