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，在空格处填人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。
As a child, I was always out exploring my local area, whether swimming at the beaches or hiking through the bush. Australia’s outdoor lifestyle had me hooked on adventure and nature. I always wanted to explore   16  else was out there. Going on family holidays to many of the East Coast beach towns was always   17  fun adventure into the   18  (know). I came to love the beauty of world, and began to recognize just   19  much the planet had to offer, even   20  my experience of it was only in my backyard.
Also, Australia is very remote and detached from the rest of the world.   21  (Europe) often drive into other countries for   22   summer vacations. We never had that luxury and   international travel seemed all the more exotic and   23  (adventure) to me. Very often, we   24  (expose) to other countries through TV and movies,   25  I wanted to experience it for myself.