第24版快递专练答案：

1. had been waiting
2. to be
3. is being built
4. to have
5. where
6. for
7. has been studying
8. on
9. to attend
10. that
11. was walking
12. to see
13. to go
14. who
15. had been playing
16. to be
17. in
18. to take
19. which
20. has been working
21. by
22. to be
23. for
24. that
25. have been living
26. to visit
27. in
28. to have
29. where
30. has been studying
31. to be
32. for
33. who
34. had been waiting
35. to be
36. in
37. to have
38. where
39. has been working
40. by
41. to be
42. for
43. that
44. had been playing
45. to attend
46. in
47. to take
48. which
49. has been studying
50. by
51. to be
52. for
53. who
54. had been waiting
55. to be
56. in
57. to have
58. where
59. has been working
60. by
61. to be
62. for
63. that
64. had been playing
65. to attend
66. in
67. to take
68. which
69. has been studying
70. by
71. to be
72. for
73. who
74. had been waiting
75. to be
76. in
77. to have
78. where
79. has been working
80. by
81. to be
82. for
83. that
84. had been playing
85. to attend
86. in
87. to take
88. which
89. has been studying
90. by
91. to be
92. for
93. who
94. had been waiting
95. to be
96. in
97. to have
98. where
99. has been working
100. by