Start Proficient Cover letter How difficult was this activity? Too hard Learn some of the formal language you'll need when you apply for a job How difficult was this activity? Too hard Try these activities next Proficient More definitions Practise using different forms of the same word Proficient Formal and informal writing This writing activity practises the appropriate register. Choose whether the phrase is used in formal or informal writing. Proficient Complaining politely and appropriately Read an extract from some letters of complaint. Use this writing activity to practise if the language of complaining is polite and appropriate, or not.