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.
小题1:by
小题2:join
小题3:youngest
小题4:others
小题5:so
小题1:本句的含义为来自于世界上的人们通过写信来交朋友，表示方式使用介词通过的单词by。
小题2:本句的含义为找到一个笔友其中有一个方法就是加入俱乐部，故本句空格处填加入的单词join。
小题3:本句的含义为他们最年轻的成员为8岁，故本句空格处填最年轻的单词youngest。
小题4:本句的含义为一些人想了解另一个国家人的生活，其他的人想练习他们的英语，some……others表示一些……其他的含义，故本句空格处填others。
小题5:本句的含义为邮票收藏者给不同国家的人写信为了他们可以收集到邮票，so that表示为了的含义，故本句空格处填so。