"34.  1) in 2) by 3) at 4) on   I’m so 30_______ on adventure. I always remember the stories about my grandfather’s expedition. My granddaddy, Jim Edward…

"34.  1) in 2) by 3) at 4) on   I’m so 30_______ on adventure. I always remember the stories about my grandfather’s expedition. My granddaddy, Jim Edward Freeman from Australia is the person to walk the length of the Amazon River. He started by a small stream in the Andes mountains of Peru and arrived 31____ the river’s mouth in Brazil, two years and four months later, having walked 6,000 kilometers. The Amazon rainforest is home to poisonous snakes, crocodiles and jaguars, so he was in constant danger. Luckily, my grandfather survived with nothing worse than a few thousand mosquito and ant bites. On his trip, Ed had to find food to eat every day. A lot of the time, fish and meat were hard to find and he had to substitute it 32________ fruit and nuts. That’s why he often felt weak and exhausted. Ed’s walk would have been impossible without technology. He used a radio to ask the people of the rainforest for food and permission to cross their land. Many of them came to meet him and provided him 33_______ food and clothes. As he walked Ed wrote a blog, recording his day-to-day experiences. He used the media interest in his trip to protest about the destruction of the rainforest and raise money for environmental and children’s charities in Brazil and Peru. I always wanted to follow 34_______ my grandfather's footsteps. So after I had 35_______ from university, I participated in various volunteer programs. Today I’m a leading expert on Geographical Exploration Area. Without any doubt, my descendants will never be disappointed 36_______ me."