Beijing was once a city of bikes, known as the Bicycle Kingdom cars were reserved for official business and the politically powerful. However, decades of economic (grow) led to a huge flowing of cars in the city. Owning one became not just a marker of reaching the middle class but also a requirement for marriage. As the economy developed, autos pushed bikes off the roads (create) heavy pollution and miserable traffic.

    (fortunate), now Beijing may he returning to its roots. Thanks to about 20 technology companies, brightly colored shared bikes (flood) into Beijing in the last two years. Many local residents welcome the shared bikesthe flexibility and freedom they offer. They pick up the bikes and then ride and drop off anywhere they like, locking the back wheel, with no need to find a fixed place.

    Analyses in China say it is three factors that contribute to bikes (increase) rapidly: a lot of cash looking for a home, a good idea and government support. “As the city s population grew, traffic jams got  (bad).” Cai, the Ofo spokeswoman, said, “Shared bikes could solve the 'last mile' problem in  environmentally friendly way.”