помогите ответить на вопросы о Британии

1. Why is Piccadilly Circus called the centre of London?
2. In what part of London are most of the big stores situated?
3. Why are public holidays in Britain called 'bank holidays'?
4. What is high tea?
5. What sports have originated in Britain?
6. What is the annual sporting event whick takes place on the river Thames?
7. What are the Highlands of Scotland like?
8. Why is Wales often called the 'land of song'?
9. What kinds of hard fruits grow well in many parts of Britain?