52. A . stop B. wander C. imagine D. fascinate
50. A . much B. something C. nothing D. anything
51 A . nutrient B. sound C. explosion D. smell
49. A . too B. either C. anyhow D. somehow
48. A . concentrate on B. stare at C. work on D. stick with
47. A . Within B. After C. For D. before
46. A . came about B. came up C. turned up D. turned out
45. A . excitement B. feeling C. privacy D. love
44. A . however B. but C. or D. and
43. A . room B. seat C. space D. angle
42.A . wander through B. walk though C. run through D. look through