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Everyone knows London is an important city in England. London was once the biggest city in the world, but now many cities are much bigger than it. London has a population of about 7 million. It is an old city. Many tourists from all over the world come to visit its famous buildings and hear the famous clock, Big Ben.
Like many big cities, London has problems with traffic and pollution. Over one million people use the London underground every day, but there are still too many cars in the streets. The air is not clean, but it is cleaner than it was 100 years ago.
Perhaps the best things about London are the parks. There are five parks in the centre of the city. But for the children, their favorite place is Hamleys. It is the biggest toy shop in the world. They can buy good toys there.
Now many cities in the world ______________than London.
Visitors come to London to________________.
London has the same ___________ with traffic and pollution as many other big cities.
The air in London is ___________than it was 100 years ago.
Hamleys is _____________in London, even in the world.