题目内容：

根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。

Americans bought an estimated 18 and a half million bicycles last year. Some bikes never get much riding.   1.   But a project based in Washington is putting unwanted bikes from the United States to good use in developing countries.

Keith Oberg is the director of Bikes for the World. He said, “Everybody has an old bicycle, and it is usually not ridden.   2.  ”

Bikes for the World collects bicycles and delivers them at low cost to community programs in developing countries. The bicycle recycling program is one of the largest in the United States. It is a sponsored project of the Washington Area Bicyclist Association.

3.   Since then it has shipped more than 40,444 bikes to communities in Africa, Latin America and the Caribbean, says director Keith Oberg.

Bikes for the World partners with nonprofit groups in the United States to collect unwanted bikes. Then it works with nonprofit in the other countries to get the bikes to organizations and individuals that need them the most.

For example, the Bicycle Empowerment Network Namibia uses the bikes to provide transportation for health workers.  4.   The organization also has bicycle ambulance services to transport the sick.

The Bicycle Empowerment Network also provides training and support to help local organizations and individuals open bike shops of their own. The businesses sell the recycled bikes at low cost and provide repair services.   5.

A. Mostly they gather dust.

B. However, they are very expensive to buy.

C. It sits there in the garage, or basement or shed, going to waste.

D. Bikes for the World began in 2005.

E. Do you know when Bikes for the world begin?

F. That makes it possible for them to visit more patients each day.

G. Many of the organizations use the money they earn to help pay for other community projects.