Band 6+: How is the Subway system developing in your country.

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

The response is relevant to the question and demonstrates understanding. However, it lacks detailed information about the development of the subway system. Consider providing more information about the planned system, its features, or the timeline for completion. Broadening the scope of the answer beyond simply stating the lack of a current system and mentioning a future project would improve the response.

The answer is coherent and easy to follow. However, the phrase "double-upping country" is not standard English and detracts slightly from the fluency. Consider using more precise language like "developing country" or "a country undergoing rapid development." Minor repetition of "very soon" could be avoided by using synonyms or rephrasing.

The vocabulary is adequate but not particularly sophisticated. While the answer is understandable, using more precise and varied vocabulary would improve the score. For example, instead of "taken a project," consider "initiated a project" or "undertaken a project." The word "Connoffoli Tunnel" sounds unusual; if this is a real project, consider adding context. If not, a more generic term like "an underground transport project" would be better.

The grammar is mostly accurate, with only a minor issue in the unusual phrasing. The sentence structures are simple but effective. Using more complex sentence structures and a wider range of grammatical features would enhance the score. For example, instead of two short sentences, combine them into one more complex sentence.