A great    1    (achieve) was made in 1953. Edmund Hillary and Tenzing Norgay climbed to the top of Mount Everest    2    (successful) at 11: 30 am, on May 29. They became the first people    3    (reach)the peak of Mount Everest.

Edmund Hillary was a New Zealand mountaineer, explorer and philanthropist, and Tenzing Norgay was a Nepali-Indian Sherpa mountaineer. Both of them were part of the    4    (nine) British expedition(探险)to Everest    5    (lead) by John Hunt in 1953. For this expedition, Hunt selected a group of people who were    6    (experience) in climbing mountains. In the group, Edmund Hillary    7    (select) from New Zealand, and Tenzing Norgay was actually from India where he lived. Before climbing, the expedition had been organized and planned for months. They made 9 camps on their way up, some of    8    have been still used by climbers up to now The first team made    9    to the place which was just 300 feet below the peak, and they left on May 26. They actually had already reached the point that no man had reached before. They were forced to leave because of the bad weather and besides, there were problems    10    their oxygen tank, too.