50. A. at               B. on               C. in              D. during

49. A. becoming         B. taking           C. getting          D. suffering

48. A. mainly           B. actually          C. merely          D. extremely

47. A. In time           B. On time          C. At the end      D. On the end

46. A. relatives          B. friends           C. strangers       D. family

45. A. believe           B. believe in         C. depend         D. rely

44. A. losing             B. going            C. missing         D. coming

43. A. offer              B. provide          C. give            D. share

42. A. value             B. money            C. expense        D. price

41. A. study             B. master            C. know          D. figure