阅读下面短文, 按照句子结构的语法性和上下文连贯的要求，在空格处填入一个适当的词或使用括号中词语的正确形式填空，并将答案填写在答题卡标号为16—25的相应位置上。
A man who knows how to write a personal letter has a very powerful tool. A letter can be enjoyed, read and reread. It can set up a warm conversation ___ two people far apart (远离的); it can keep a ___   (friend) with very little effort.
I will give an example. A few years ago my older brother and I were not getting along. We had been close as children _ had grown apart. Our meetings were not ___ (pleasure); our conversation was filled with arguments and quarrels: and every effort to clear the air seemed to only ___ (deep) our misunderstanding. Then he moved to a small island in the Caribbean and we lost touch. One day he wrote me a letter. He described his island and __ people, told me what he was doing, said how he felt, and encouraged me to write. Rereading the letter, I __ (drive) by its humor（幽默）and clever expressions. These were all qualities for ___ I had once respected my older brother but thought he no longer had them. I had never known he could write so well. And with that one letter we became friends again.
___ might never have occurred to my brother to write me if he had not been in a place where there were no phones. For him, writing was a necessity. It also turned out to be the best way for us to get back in touch. Because we live in ____ age of easy communication（通讯）, people often forget that they don’t always have to phone or email. They have a choice. And that is to write.