Write a letter to your friend. These are IELTS sample letters, with questions and model answers showing you how to write informal, semi-formal, and formal letters.Official practice and sample questions and answers. We have a range of materials to help you do well in your IELTS test. Get access to the informal letter samples associated with an IELTS general writing task 1 and boost up your IELTS preparation to study abroad. I am writing to you to tell you that I have decided to apply for a job with another company – ABC Electronics. Useful Tips for IELTS Writing Task 1(Letter Writing). You can select from Formal, Informal, or Semi-Formal letters in the IELTS General Writing Task 1. The IELTS General Writing Task 1 measures your ability to communicate about common practical issues. You have 20 minutes to respond to a question prompt.