54. A. live B. know C. learn D. start
53. A. handed in B. held out C. pointed out D. came up
52. A. number B. name C. thing D. person
51. A. uses B. treats C. needs D. likes
50. A. in B. through C. after D. by
49. A. looked B. worked C. rushed D. waited
48. A. since B. though C. but D. so
47. A. angry B. helpful C. worried D. kind
46. A. locked B. found C. took D. held
45. A. put B. send C. leave D. break