29. A
30. B
31. C
32. A
33. D
34. B
35. B
36. C
37. B
38. B
39. D
40. A
41. A
42. A
43. C
44. B
45. D
46. A
47. C
48. A
49. B
50. A
EX2
1 to see
2 to arrive
3 to go/make
4 to seeing
5 to meet
6 to work
7 to see
8 waiting
9 not to touch
10 to clock/going
11 nnot to speak
12 to explain/listening
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