The task will be in the form of either letter or email which includes e.g.
* write a letter of invitation to .....
* write a letter to the local council to complain about......
* write an enquiry to a company asking for information
* write a reply to the customer’s letter or email
* write an email to your staff explaining the situation.
* write an email to editor of the Chronicle with your press release
* write a reply to the H.R manager with a draft of your job advertisement