If you go to London, you can see a lot of buses and cars on the roads. You can also see many bikes because more and more people go out by 1 . Why is that in such a big city? There 2 many reasons (原因). First, it is very cheap to buy a bike. Second, people often need to wait for a bus for half an hour. Finally, when the bus 3 , so many other buses and cars also go on the roads, so the bus moves very slowly.
I go to work by bus for about four years. I often 4 at work late and feel tired. One day, a friend of 5 says, "I ride a bike to work. Why don't we go to work together?" "My bike is old. I leave it at my home for a long time. I can see many buses and cars on the roads." I answer. "Don't be afraid. If you 6 me and we ride slowly, you'll be fine." he says.
Later, I buy a new bike. We ride slowly, 7 we arrive at work early. It takes me about 40 minutes 8 to work by bus, but only half an hour by bike! Now I love 9 a bike to work every day. And I feel 10 . Many people think my idea is good and maybe you can see more bikes on the roads in London.