London is a city of contrasts. In some areas, there are ancient buildings like the Tower of London, which is nearly a thousand years old. In other areas, there are modern skyscrapers made of glass and steel. There are over 3,000 parks in the city, so there is always a green space nearby. Transportation is easy because there are thousands of red buses and a large underground train system called "The Tube." However, there are also some problems. Because there are so many people, there is often a lot of traffic and the streets are very crowded during the day. Choose the correct answer.
1. How old is the Tower of London?
2. What are the modern buildings made of?
3. How many parks are there in London?
4. What is "The Tube"?
5. What is a problem mentioned in the text?
You must answer all questions before submitting the quiz.