Are you going to be taking a Trinity ISE exam during 2015? You’ll need to write a “portfolio” with a correspondence, a factual writing, and a creative writing text.
You can download the PDF with the 2015 Trinity ISE Portfolio Tasks at Trinity College London’s website: http://www.trinitycollege.com/site/?id=1838. (You can also find helpful study material on this website!)
Choose the text from each section which most interests you, and start writing!