I am an American living in Sydney, I have tutored on and off for many years, and I have written thousands of pages of copy for different projects so my grasp of the English language is not just for what we find in literature, I am also able to teach people who will be using their skills in a corporate or business setting. I have also tutored many people for whom English was their second language, and I have worked with students ranging from 10 years old, all the way up to people in their mid-fifties.
In Sydney, you are able to practice your English on a daily basis, which is a blessing in learning any new language. Much of the learning process is what happens after the time in the classroom is complete, the student needs to practice the language every day, while they are interacting with the outside world.
It really depends on your level of commitment. I was once in a foreign country and I was able to learn a new language well enough to communicate with my work colleagues in just over 6 weeks. It took a lot of work, repetition, and study. But it proves that the process of learning a new language, in large part, comes down to the overall commitment of the student.
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