题目内容：

    On October 13, a small plane flying to Chile accidentally crashed into a mountain in the Andes. How some of the passengers ______ to live is one of the greatest survival stories ever told.

The survivors ____ inside the remains of the plane, using seat covers for blankets,  and waited for a  ______  that never came. Days turned into weeks. It was urgent to find a way to  ______. Three of the passengers - Canessa, Parrado, and Vizintin volunteered to ______ through the mountains to search for help. When they left, each man wore similar clothes: three pairs of socks, a plastic bag  ______ each foot to keep the water out, boots, four pairs of trousers, and four sweaters. Many of the clothes came from those who died in the crash. The three men ______ that they would survive and bring back help.

For part of the first day, they were glad to make some ______. But as the land and weather changed, climbing became  ______. After several days, they reached what they thought was the top. They had  ______ this moment for days. On the other side of the top, they hoped, would be a ______ leading down and out of the mountains. However, they saw the same snow-covered tops. All hope wasn’t  ______. Although they were still in the middle of the mountains, Parrado  ______ two low tops far away that didn’t have snow. If they get there, they would be out of the Andes.

Within the following days, they walked toward the two low tops. Little by little, the landscape began to change. Snow ______ completely, and flowers were everywhere. “This is the valley,” Canessa said. “This is the way ______.” Then things of humanity started to appear-a few cans on the ground, some farm animals in a field. By December 21, the extremely ______ men made it to the town of Los Maitenes, and a rescue team was sent immediately to ______ for the survivors who were still high in the Andes.

Finally all of the remaining survivors were ______. The memories of the crash in the Andes would be with the friends forever, but for now, their terrible ______ was over. They had made it out ______.

1.A.learned B.expected C.decided D.managed

2.A.stayed B.looked C.turned D.reached

3.A.present B.rescue C.message D.danger

4.A.prepare B.continue C.escape D.develop

5.A.journey B.compare C.measure D.expand

6.A.against B.under C.beside D.around

7.A.admitted B.demanded C.informed D.promised

8.A.plan B.effort C.progress D.suggestion

9.A.tougher B.heavier C.sharper D.narrower

10.A.appreciated B.arranged C.witnessed D.imagined

11.A.court B.valley C.border D.channel

12.A.lost B.left C.sent D.kept

13.A.rejected B.counted C.spotted D.mentioned

14.A.declined B.froze C.spread D.disappeared

15.A.behind B.out C.apart D.off

16.A.frightened B.disappointed C.tired D.puzzled

17.A.fight B.call C.search D.ask

18.A.listed B.saved C.picked D.treated

19.A.performance B.experience C.challenge D.exploration

20.A.alive B.cool C.free D.crazy