50. A. that B. when C. then D. why
49. A. assisted B. led C. helped D. caused
48. A. Canadian B. African C. German D. Mexican
47. A. but B. however C. and D. therefore
46. A. friend B. teacher C. husband D. brother
45. A. home B. college C. school D. library
44. A. improved B. improvised C. increased D. developed
43. A. praise B. guidance C. improvement D. encouragement
42. A. hiding B. reading C. crying D. feeling
41. A. Despite of B. In spite C. Despite D. Spite of