题目内容：
The young wonman entered the pool where an injured dolphin(海豚) was swimming. Despite her fear,she felt strong wearing her new leg.In her second grade. Maja_____31_____her cousin.Jasmina.After Jasmina’s death.Maja swore she would honor the little girl by_____32_____with a dolphin,an animal that both girls_____33_____.”Jasmina never got the chance to do it.”says Maja.now32,”so I_____34_____that someday I’d do it for her.”
In high school,Maja was_____35_____about sports. she even planned to become an athlete._____36_____,in 1993. during the eivil war in her home country, a bomb_____37_____her left leg.
After tow years’_____38_____in the U.S.,Maja received her first artifierd (人造的)leg. But_____39_____it didn’t fit well, walking for Maja was painfei_____40_____she managed to graduart from a loca high school. Then after receiving a _____41_____from Saint Francis University, she got a job at an insurance firm and_____42_____started her own campany.
To relax. Maja_____43_____ofter watch the dolphins play at an auarium (水族馆)near her home.A young dolphin. Winter, who had lost its tail, eaught her_____44_____One day,Maja happened to see trainers_____45_____Winter with a high-teeh tail.When they were done.Winter swam freely in the water.Maja was_____46_____. She managed to find the inventors of Winter’s tail.Within ten days,she had a new leg which freed her the_____47_____that had troubled her for almost 16years.
Now, Maja was ready to keep her_____48_____.She went to the aquarium. Lowered herself into the pool and held out a hand to Winter, who approached_____49_____, then swum away. After a few minutes. The dollop hint let Maja_____50_____its back Finally .the began to swim around the together.
第31题正确答案是（ ） A．A .lost
B．visited
C．C .rescued
D．left
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答案解析：