从A、B 、C、D四个选项中选出最佳选项，使短文意思完整。

　　We may have many difficulties in life, and sometimes it's even unfair for someone, but it depends on how you face them. Sally is a student from a university, she made a _36  last August. She decided to take her grandmother __ 37_ their hometown and live with her in a rented room (出租房) near her school.

　　Sally's family have met a lot in the past few years. Her grandmother _ 38_ her legs and she could walk only with a stick. Her father died because of illness. Sally's mother plagued (受折磨) by these events, she lost the _ 39  to take care of others. "This was the only choice. No one else could  40  my grandma," Sally explained. Her grandmother has also had a  41_ life. The old woman's three sons have all died, and Sally couldn't leave her alone where _ 42_ could look after her. A room with two beds, a desk and a table is their new home. The room _ 43  her several hundred yuan every month. In order to make money, Sally works in a supermarket after class and spends the money _ 44  the family. “I was brought up by my grandma, and now it's my  45  to take care of her," said Sally. When she was young, her grandmother "magically" prepared every meal   46   for her every day, even though she could not   47   a clock.

　　In the eyes of Sally's teacher, the girl is a(an) _ 48_ student. "Though taking care of her grandmother takes her lots of  49 , Sally has tried to stay on top of all her courses. She is even preparing for an English singing contest," Her teacher said. Sally even 50  help from others. “It's kind of like only getting without giving,” she explained. At present, the girl is able to support the home with her weak shoulder.

　　36. A. promise           B. decision          C. living         D. progress

　　37. A. from              B. in               C. to                D. for

　　38. A. kicked            B. tied              C. broke             D. lost

　　39. A. hope             B. ability            C. dream         D. power

　　40. A. look for           B. wait for          C. search for      D. care for

　　41. A. homeless          B. boring          C. hard           D. meaningless

　　42. A. nobody            B. somebody      C. anybody         D. everybody

　　43. A. pays              B. takes           C. costs           D. spends

　　44. A. supporting      B. building          C. finding           D. making

　　45. A. hobby             B. interest           C. dream            D. turn

　　46. A. in time         B. on time          C. at times           D. out of time

　　47. A. read               B. notice         C. see             D. watch

　　48. A. unlucky            B. fascinating      C. careful         D. excellent

　　49. A. money             B. spirit           C. energy         D. courage

　　50. A. accepted           B. asked           C. refused        D. got