英语一道完形的问题,在线等答案!

英语一道完形的问题,在线等答案!
When I moved into an empty dormitory for the first time two years ago, I was certain of a few things. Firstly, I realized that I didn’t 31 anybody at the school. Secondly, I knew that I wanted to work hard at my lessons and 32 something useful. And thirdly, I wanted to have a good time with new classmates, without my parents around.
The first 33 frightened me in the beginning. But that 34 quickly disappeared. It was the other two goals 35 ended up being my difficulties. I knew that it was 36 to devote enough time to class and to social efforts. But I wanted to 37 in both. I knew this would be a 38 , but I didn’t realize how much until classes began.
I got on well with the other girls who lived in my dorm. 39 , instead of finishing my homework 40 it was due, I went upstairs and had ice cream with my neighbor. I always finished it the next day between classes. I knew 41 wasn’t very good and the grade I 42 showed my lack of effort.
I was 43 that I needed to find some sort of balance.
So I created a schedule that would 44 my time up between going to class, doing homework, and relaxing. It seemed like a good idea, 45 I was only able to 46 it for a few days. A schedule like that was too much pressure.
So I tried another 47. Each week I made a list of everything I had to get done during that week.
Then, under the list of things I had to get done, I 48 a list of things I could do if I had time.
This is the method I have used since then. I’m glad that I’ve learned to 49 things and it has 50 prepare me for what is to come after graduation.
31. A. know B. recognize C. realize D. like
32. A. understand B. learn C. try D. tell
33. A. teacher B. day C. class D. realization
34. A. happiness B. excitement C. fear D. desire
35. A. which B. what C. that D. who
36. A. hard B. easy C. interesting D. nice
37. A. win B. succeed C. get D. wish
38. A. chance B. job C. challenge D. time
39. A. Often B. Seldom C. Unluckily D. Fortunately
40. A. because B. when C. after D. before
41. A. it B. one C. these D. I
42. A. demanded B. took C. accepted D. received
43. A. asleep B. awake C. ashamed D. aware
44. A. fix B. divide C. put D. build
45. A. so B. and C. but D. however
46. A. use B. keep C. follow D. make
47. A. plan B. energy C. pressure D. effort
48. A. made B. found C. picked D. brought
49. A. do B. control C. balance D. hold
50. A. had B. helped C. let D. forced
答案 31.A 32.B 33.D 34.C 35.C 36.A 37.B 38.C 39.A 40.D 41.A 42.D 43.D 44.B 45.C 46.C 47.A 48.A 49.C 50.B
第46题,为什么不能选择keep ?高手帮忙啊!