London has 1 about 7 , 00 0,000. Fom abo ut 1800 2 World Wa r II. London was the biggest city in the worl d , bu t now t here are ma n y c ities which are 3 bigger. London is famous 4 manyn things. Tourists come from all over the world 5 famous buildings and hear the famous clock, Big Bne. 6 many cities, London has problems with traffic and 7 . Over 1,000,000 persons use the London under round every day, but there are still too many cars in the street. The air isn't clean, it is cleaner than it 8 100 years ago. 9 me, the best things about London are the parks. There are five in the city center. Many children's 10 place is Hamleys, the biggest toy shop in the world.