Imagine a place shrouded in mist and whispered legends: the Tepui Roraima, a majestic table-top mountain that straddles (a) borders of Venezuela, Brazil, and Guyana. For centuries, this imposing geological formation (1) the imaginations of explorers and indigenous peoples alike. (2) near-vertical cliffs, some of (3) in the world, (4) always people (b) getting easy access to the top, allowing a unique ecosystem to flourish in isolation. Early explorers (5) a way to ascend (6) months (c) arduous journeys, looking (d) Internet in later years, poring over grainy photographs and fantastical accounts. What do you think (f) a world untouched by time? Roraima seems capable (g) holding such secrets. The summit, a plateau of approximately 31 square kilometers, (7) (h) a bizarre landscape of pinkish sandstone, sculpted by (8) of wind and rain. Strange rock formations, some resembling ancient statues, have been put (i) by natural forces over this long period. In addition (j) the geological wonders, Roraima is famous (k) its endemic flora and fauna. Many species of plants and animals (9) here, found nowhere else on Earth. The constant cloud cover and high rainfall provide the summit (1) a perpetually moist environment. Hikers who brave the multi-day trek to the top (10) often with, breath-taking views. They must give (m) the comforts of modern life and pay close attention (n) challenging terrain. Reaching the base of Roraima (o) car is possible, but (p) final ascent is only for the physically fit. Today, as ever, Roraima (11) to fascinate scientists. They (12) constantly certainly (r) new species that have remained loyal (q) this isolated habitat. Roraima is the list of the world's most extraordinary natural wonders. Sadly, some of the more fragile ecosystems on the (13) slopes (14) victim (s) unsustainable tourism (t) a rate of increasing concern, highlighting the importance of conservation efforts. One traveller wrote in his diary: "From the very beginning, the journey to Tepui Roraima promised (15) vistas I (16) ever Indigenous legends, the (17) tales of the region, (18) of a mysterious table-top mountain, warning that the (19) going to be (21) point was almost impossible to reach, so I (20) than most. "As we approached the base, clouds (22) around the taller cliffs, creating an ethereal atmosphere. The wind (23) eerie sounds as it whistled across the vast plains, a constant reminder of the Tepui's formidable nature. Our guides (24) frequent breaks as the ascent became increasingly steep, each step demanding (25) effort than the last. "We (26) the (27) gear, knowing the climb was going to require a great amount of stamina. Before the heavy rain started, we (28) already (29) more sheltered overhang and I was able to take a (30) look at the panoramic views below me. I read in books that Tepui (31) always most formidable mountain on the continent and now I was beginning to understand why. But I was sure that I (32) up and turn back. "We (33) by the guides that tomorrow, the weather (34) likely changing again and our climb to be top may become even (35) I (36) to brace myself up for the new challenge..."