Band 6+: The bar chart below shows the percentage of students in a secondary school who chose different foreign languages in 2005 and 2015.

The report effectively addresses the task by presenting the main trends and comparing the data for both years. The overall structure is clear, with an introduction, an overview, and detailed paragraphs. However, there are a few minor issues: the phrase 'Italian grew from 20% to 40%' is incorrect (it should be 'Spanish'), and the report ends abruptly without a concluding sentence. Additionally, the language could be more precise in places, such as using 'at the beginning' instead of 'at the begining' and avoiding the informal 'While' at the start of a sentence. Overall, the response is well-organized and covers the key information, but these small inaccuracies and stylistic points prevent it from achieving a higher band. The report falls short of the required 150 words.

The report is generally well-organized with a clear introduction, overview, and body paragraphs. The progression of ideas is logical, and the use of cohesive devices (e.g., 'Overall', 'In 2005', 'In 2015', 'Similarly', 'In contrast') helps the reader follow the data. However, there are minor lapses in cohesion, such as the abrupt shift in the second body paragraph where specific comparisons are repeated, and the phrase 'To be more specific' introduces a slight redundancy. The paragraphing is adequate but could be more skillfully managed to separate the detailed comparisons from the initial data presentation.

The report uses a good range of vocabulary appropriate for the task, including terms like 'illustrates', 'proportion', 'accounted for', 'stood at', 'overtook', and 'increased a little'. There is evidence of flexibility in lexical choice. However, there are some inaccuracies and less natural phrasing, such as 'young people in high school' (which is slightly informal and less precise than 'students in a secondary school'), 'at the begining' (spelling error), and 'got more popular' (which is a bit informal). The phrase 'To be more specific' is used incorrectly, as it introduces a repetition rather than a clarification. Overall, the vocabulary is adequate but lacks the sophistication and precision expected for a higher band. Boost vocabulary complexity to elevate the overall score.

The report demonstrates a good range of grammatical structures, including comparative forms, passive voice, and varied sentence openings. Most sentences are grammatically correct, and punctuation is generally accurate. However, there are a few errors and awkward phrasings: 'at the begining' should be 'at the beginning', and the sentence 'Italian grew from 20% to 40%' is incorrect (it should be 'Spanish grew from 20% to 40%' based on the data). Additionally, the final sentence is a bit repetitive and could be more concise. These minor errors do not impede understanding but prevent the report from achieving full flexibility and control.