III. Cloze: Choose the BEST answer for each blank in the passage. Passage 1       In 1982, Hugh Herr and a friend set out on a climbing expedition in New Hampshire, butpartway through the hike they found themselves in the middle of a fierce blizzard. They soon lost their__21__. in the storm, and ended up wandering through the woods for three days and nights.Exposed to the elements, the climbers became weak and gradually began to lose__ 22.__   in theirlimbs.        Hugh and his friend were eventually rescued and taken to safety, but doctors were unable to __23.__ Hugh’s legs. Hugh had to replace his legs with a pair of prosthetics. It took many __24.__   surgeriesbefore Hugh could even walk on his prosthetic limbs. But still Hugh wanted to climb. So, heconstructed a number of prosthetic legs specially __25.__ for climbing. Instead of __26.__  hisability to climb, Hugh’s new legs gave him some advantages over other climbers.
 Hugh had discovered a new passion. He earned his PhD in biophysics and now designsadvanced prosthetics at the Massachusetts Institute of Technology, where he is developing ways toallow the brain to directly __27.__ a prosthesis. If Hugh’s ideas are __28.__ successfully, they couldrepresent a revolution in the field of prosthetics.
【題組】21.
(A) orientation
(B) expectation
(C) arrangement
(D) confusion