Dear Zak Washington,
I am/This is (‘This is’ is a correct impersonal form that is very common in written communications or on the telephone. ‘I am’ would be inappropriate in this type of situation.) Jack Lawton, the director of studies of The Bumsberry School of English, where you supposedly ‘work’. Where the hell have you been? I’ve had much/many/a lot of (‘Much’ or ‘many’ are only really used in negative or interrogative sentences.) students asking after you. Well, I’ve got a very important class coming up, and you’re the only teacher that I’ve got left who can teach it. It’s a private one-to-one class with a very important student. Have you heard of Ali Fred? He’s the son of Raji Fred, the important businessman, who owns half/the half (No article with ‘half’.) of Britain. He owns a couple of football teams, a few department stores, private jets, helicopters, etc. Therefore/Anyway,(‘Therefore’ -as mentioned above- means ‘as a conclusion’; whereas ‘anyway’ is used to change the subject, or bring the focus of the subject back to the main topic.) his son Ali is going to get married with/to (‘To’ is the correct dependent preposition.) Lady Sara Winthorpe, the Queen’s niece. Do you remember her? I remember you saying in the staff room, that she had the best bust in the whole royal family. Remember? Well, you can’t carry on making comments like that.
Ali Fred, has a quite high level of English already, but he speaks like someone from the 1920s. He needs a lot of practice. Also/As well, (‘As well’ is only normally placed at the end of a sentence; ‘also’ usually goes at the beginning.) he doesn’t understand much about the British way of life. I want that/want (speakers of romance language will be used to putting a word like ‘that’ after ‘want’. It is not correct, in English, we use WANT +PRONOUN + INFINITIVE) you to teach him about typical British customs, our culture, the food, the way of life, how to greet people, and that sort of thing. He will be doing a weeklong intensive course. You will have to look after him during the day; in the evening he will be returning to the Ritz, where he’s staying. I’m giving you a special expense account for this. Bring/Take (‘Bring’ is only used if you are already at the place mentioned. If you are not geographically there, you need ‘to take’.) him to the parks, nice restaurants, Speaker’s Corner, the museums and places of cultural interest. You’ve got a week to prepare him linguistically and culturally before the wedding.
I cannot express to you how important this job is for me, and for The Bumsberry School of English. So secure yourself/make sure (‘Make sure’ means ‘be careful that…’) that you look presentable…and it’s against this man’s religion to drink alcohol; so no bars or nightclubs! This is a chance for us to put the school on the map. Get in touch ASAP, and I’ll give you all the details.
Jack Lawton, Headmaster/Director of studies. (A ‘headmaster/headmistress’ governs a school; a ‘director of studies’ does so in an academy, or language school.)