50. A. open B. close C. shake D. show
49. A. hold B. put C. keep D. hide
48. A. insect B. idea C. gift D. feeling
47. A. old man B. father C. friend D. other
46. A. go B. wait C. search D. ask
45. A. often B. always C. seldom D. never
44. A. delightful B. thankful C. helpful D. useful
43. A. idea B. way C. answer D. excuse
42. A. unlike B. like C. as D. being
41. A. stopped B. continued C. hated D. loved