Band 8+: in what ways has your town or city changed since you were a child?

Your pronunciation is quite good. Working on consistency and tackling difficult sounds may enhance clarity.

The answer directly addresses the question and provides a clear comparison between the past and the present. The response is well-structured, moving from a general overview to specific areas of improvement (infrastructure, transportation, and education) before concluding with a summary of the overall impact. To further enhance the response, you could provide one specific example of a change, such as mentioning a particular new landmark or a specific type of transport that was introduced, to add even more depth to your elaboration.

The answer is very coherent and flows logically from a comparison of the past to the present. You used good cohesive devices like 'But now' and 'It's quite hard to list...'. To reach a Band 9, try to expand slightly more on a specific example (e.g., mentioning a specific new building or a new subway line) to avoid the answer feeling a bit too 'template-like'.

You used some high-level collocations and vocabulary such as 'dramatically changed', 'lack of infrastructure', 'significant improvements', and 'positive transformation'. These are very effective. To improve, you could incorporate even more precise descriptive adjectives or idiomatic expressions (e.g., 'the cityscape has undergone a complete makeover' or 'urban sprawl').

Your grammar is highly accurate. You successfully used the present perfect ('has dramatically changed', 'has become') to describe changes over time, which is exactly what this question requires. The sentence structures are varied. To hit a 9, try to incorporate more complex subordinate clauses or conditional structures (e.g., 'If it hadn't been for the new infrastructure, the city wouldn't be as vibrant as it is today').