47. By 9 p. m. tomorrow this task b) will have been fulfilled; by them.

48. I (learn) those words by the examination yesterday. b) had been learning;

49. She d) has just sold two of her own paintings,

50. But why b) are you leaving; your present house (leave)?

51. A valuable picture from our local art gallery yesterday (b) was stolen).

52. The stones a) had been thrown by a student, who was led away by the police.

53. We didn't know the score, but we were sure their team b) had lost the game.

54. The children were afraid of making any noise. - Mom (sleep). a) was sleeping;

55. We were told that Andrew (go) to enter that college. c) was going

56. My parents decided that we ( b) had lost) my birthday on Saturday.

57. Every educated person (a) must; ) know a foreign language.

58. The lecturer (c) may) come at any moment.

59. You (d) should) explain her how to get to Trafalgar Square.

60. I shall not be ( b) allowed) to go to the country with you tomorrow, I think.

61. Margaret (know) to be a very industrious person. b) is known;

62. This book (republish) by the end of September. b) will have been republished;

63. A police car came when the injured man (a) was being carried off; ) the road.

64. In Greece the Olympic Games (hold) once in four years. a) were held;

65. I remember him before. a) having seen;

66. I have never heard Helen (sing). c) singing

67. I watched my cat (playing) with her kittens. I couldn't tear myself away from that

funny sight.