题目内容：
根据材料，回答题：I went to a group activity, “Sensitivity Sunday”, which was to make us more 36 the problems faced by disabled people. We were asked to “ 37 a disability” for several hours one Sunday. Some members, 38 , chose to use wheelchairs. Others wore sound-blocking earplugs（耳塞）or blindfolds（眼罩）.
Just sitting in the wheelchair was a 39 experience. I had never considered before how 40 it would be to use one. As soon as I sat down, my 41 made the chair begin to roll. Its wheels were not 42 . Then I wondered where to put my 43 . It took me quite a while to get the metal footrest into 44 . I took my first uneasy look at what was to be my only means of 45 for several hours. For disabled people, “adopting a wheelchair” is not a temporary（临时的） 46 .
I tried to find a 47 position and thought it might be restful, 48 kind of nice, to be 49 around for a while. Looking around, I 50 I would have to handle the thing myself? My hands started to ache as I 51 the heavy metal wheels. I came to know that controlling the 52 of the wheelchair was not going to be a(n) 53 task.
My wheelchair experiment was soon 54 . It made a deep impression on me. A few hours of “disability” gave me only a taste of the 55 , both physical and mental, that disabled people must overcome.
36. A．curious about
B．interested in
C．aware of
D．careful with
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