41. have you seen / went
42. are/ have been
43. have seen
44. has taught/ graduated
45. will go/finish
46. has already seen
47. has already begun
48. have not eaten
49. has gone/sat/rested
50. went
51. have ever seen
52. did you do
53. went, had called
54. had taught/ left
55. has started
56. stops.
57. will stay/answers
58. catch
59. will help/finishes
60. will wait/come
61. will come
62. see
63. will start
65. will work
66. have completed
67. will drive
68. will look
69. have been
70. will move
71. has worked
72. will give/see
73. will pass
75. have you finished
76. have finished
77. will interview
78. will explain
79. see/will remind
80. will you do/ will practise