【正文】
Dear Sir/Madam, I, XXX, registered at the University of Ottawa as a fulltime student in the Bachelor of XXX, would like to invite my mother Mrs. XXX, born XX XX XXXX, to visit me in Canada from July, 20xx. The purpose of the visit is social as well as tourism within Canada. During her visit, she will stay with me at the above address. I will make sure that my mother will leave Canada before the expiration of her authorized stay. Your help in issuing a temporary resident visa for my mother would be greatly appreciated. Please do not hesitate to contact me via telephone or if you have any further questions. Best regards, Your Name 6 / 6