根据2b短文内容用所给词的适当形式填空。 Aron Ralston is a mountain1. _________(climb)who is interested in climbing mountains. He is used to2. _________(take)risks. On April26, 2003, he found himself in a dangerous situation when3. _________(climb). His arm was caught under a360-kilo rock when he was climbing by4. _________(he). He stayed there for five days because he couldn’t free his arm. When his water ran out, he knew he would have to do something5. _________(save)his life. He used his knife6. _________(cut)off half his right arm. Then he bandaged himself and climbed down the mountain to find help. After7. _________his arm, he wrote a book8. _________(call)Between a Rock and a Hard Place. In this book, Aron tells of the9. _________(important)of making good10. _________(decide)and being in control of one’s life. Aron still kept on climbing mountains after this experience.