Band 5+: You recently tried an unusual or extreme sport for the first time, and something unexpected happened. Write a letter to your friend. In your letter: - Explain what sport it was and why you decided to try it. - Describe what unexpected thing happened during the activity. - Invite your friend to join you next time and suggest a date.

The letter effectively addresses all three bullet points: it explains the sport (rock climbing) and the reason for trying it, describes the unexpected event (lights going out), and invites the friend with a suggested date. The tone is appropriate for a letter to a friend, and the content is relevant and sufficient. Minor lapses include the vague date 'October' (which could be more specific) and a slightly abrupt ending, but these do not detract significantly from the overall task achievement. To improve, consider adding more detail about the experience or your feelings, and specify a particular day in October to make the invitation clearer. The letter falls short of the required 150 words.

The letter is logically organized and easy to follow, with clear paragraphs for each bullet point. However, the opening and closing could be slightly more developed to enhance the overall flow. Consider adding a brief introductory sentence to set the context and a more engaging closing to strengthen the connection with your friend.

The vocabulary is appropriate and clear, but it is quite simple and lacks variety. To improve, try using more descriptive and precise words, such as 'challenging' instead of 'big', and 'exhilarating' instead of 'fun'. Also, consider using phrases like 'I decided to give it a try' to sound more natural. Boost vocabulary complexity to elevate the overall score.

The grammar is accurate with no significant errors, and the sentence structures are correct. However, the range of structures is limited. To achieve a higher score, incorporate more complex sentences, such as using subordinate clauses (e.g., 'Although I was scared, I continued climbing') and varied sentence openings.