Write a letter of invitation. You are Susan White, a manager of "SDN" Co. (3 Sunny Avenue, Liverpool LN 60875, UK). You are writing a letter of invitation to your potential partner Martha Osborn, a sales manager of "S Line"' Ltd. (63 Lake Road, Manchester BS 2947, UK) on the 10th of July, 2019 to inform her about a forthcoming fashion exhibition starting on November, 1st in City Palace. Inform your partner about date and time. Ask her to send a letter or phone to confirm her participation as soon as possible.