阅读下面一篇短文,按照句子结构的语法性和上下文连贯的要求,从各小题的四个选项中选出一个最佳答案,使短文连贯完整。
Do you like climbing? Have you ever _______ Aron Ralston? He is an American man_______ is interested in mountain climbing. As a climber, Aron _______ taking risks. This is one of _______ about doing sports. However, there are many times when Aron almost lost his life because of accidents. April 26, 2003 was an usual day for a climber. On that day, when he _______ by himself in the mountains, an unexpected thing happened. His arm _______ under a 360-kilo rock that fell on him. _______ he could not free his arm, he stayed there for five days. But when water ran out, he knew that he would _______ do something to save his own life. So he used his knife to _______ half his right arm. Then, with his left arm, he bandaged __________ so that he would not lose too much blood. Although he lost his arm, he still keeps on climbing. Do you want to be a climb lover like him?
21. A.listened | B.listened to | C.heard | D.heard of |
22. A.whose | B.whom | C.who | D.which |
23. A.is used to | B.used to | C.is used by | D.was used to |
24. A.exciting thing | B.exciting things | C.the exciting thing | D.the most exciting things |
25. A.is climbing | B.was climbing | C.have climbed | D.climbs |
26. A.caught | B.is caught | C.was caught | D.were caught |
27. A.Because | B.Though | C.Before | D.After |
28. A.has to | B.have to | C.can | D.must |
29. A.cut up | B.cut away | C.cut down | D.cut off |
30.