People from all over the world make friends_____66____writing letters. One way to find a pen friend is to _____67____a club. International Pen Friends started in 1967 and has over 300,000members(成员) in different countries. Their____68___member is eight years old, and their oldest member is over 80. Some people write to find out about life in another country, ___69___want to practice their English, or enjoy their hobbies. Stamp collectors, for example, write to people in different countries ___70__that they can collect the stamps on the letters they receive. Most people just enjoy making friends, and they invite their pen friends to visit them.

下列关于便民服务热线电话号码的表述，正确的是（ ）。

A．12320天气预报

B．12121环保热线

C．12345市民服务热线

D．12315消费者服务热线