Band 4+: You attended a formal dinner party hosted by a colleague, but you arrived very late and had to leave early. Write a letter to your colleague apologizing for your behavior. You should include details about: - why you were late and why you had to leave early - how much you enjoyed the evening despite the circumstances - an invitation to meet up another time to make amends.

The letter addresses the task by apologizing for leaving early, explaining the reason (extra lessons), expressing enjoyment of the party, and suggesting a make-up activity (cinema). However, there are some inaccuracies and omissions: the reason for leaving is vague ('extra lessons' without specifying why it was sudden), and the apology could be more sincere and detailed. The tone is informal and friendly, which is appropriate, but the letter lacks a clear structure and some details are irrelevant (e.g., describing games and company in detail). To improve, provide a clearer explanation for the sudden departure, express more genuine regret, and make the invitation more specific and polite. The letter falls short of the required 150 words.

The letter has a logical structure, but the flow is disrupted by abrupt transitions and a lack of clear paragraphing. The apology and explanation are placed after the appreciation, which is acceptable, but the sequence of ideas could be smoother. Consider organizing the letter into clear paragraphs: one for the apology and reason, one for appreciation, and one for the make-up plan. Use cohesive devices such as 'However', 'In addition', and 'To make up for it' to link ideas more effectively.

The vocabulary is basic and sometimes inaccurate (e.g., 'obsessfull', 'inconsiderate' misspelled, 'extra lessons' instead of 'extra classes'). There is limited range and flexibility. To improve, use more precise and varied vocabulary, such as 'memorable', 'thoughtful', 'apologize sincerely', 'unexpected commitment', and 'compensate'. Avoid informal phrases like 'a lot of stuff' and 'Reply asap' in a semi-formal letter.

There are numerous grammatical errors and punctuation issues that affect clarity. Examples include: 'invitition' (spelling), 'I had an extra lessons' (article and plural), 'I would like invite you' (missing 'to'), and inconsistent capitalization. The sentence 'Games that you choosed to play was so interesting' has subject-verb agreement and tense errors. To improve, focus on using a variety of sentence structures, proofread for common errors, and ensure subject-verb agreement and correct use of articles and prepositions.