How to write a letter to a French university teacher to apply for admission?

However, some language schools do not issue professional pre-admission and housing certificates, and the majority of students must write and ask clearly. Otherwise, the language tuition will be paid in advance, and only language admission will be available, but without professional pre-admission and housing certificate, you still can't go to CELA visa. Therefore, when writing a letter, first ask the language center politely for language admission, then politely ask the professional pre-admission and housing certificate, and at the same time ask Jevous Prie de Bien Vouloir Donner L 'Attitudes de PR? French inscription? aise？ Moi (indicate the time, for example, the language that takes one and a half years to start school in spring is 02/20 13-09/20 14, and the language that starts school in autumn is one year, 09/20 13-09/20 14).