[参考答案]动词的时态 强化练习

1. has been helping

2. was thinking

3. is

disappearing

4. was talking

5. came

6. was chatting

7. will give

8. won't say

9. made

10. arrived

11. were lying

12. will get

13. was leaving

14. has been rising

15. was competing

16. was

17. have gone

18. failed

19. had prepared

20. has invented

21. are rising

22. proved

23. works

24. had gained

25. turns

26. is declining

27. was studying

28. said

29. are working

30. cost

31. amused

32. won't burn

33. allows

34. has improved

35. have increased

36. has proved

37. are looking

38. was discovering

39. was standing

40. contacted

41. gave

42. hasn't written

43. is finding

44. has drained

45. moved

46. will have

47. had risen

48. has won

49. are thinking

50. has been serving

51. has saved

52. studied

53. haven't been

54. are making

55. have been

56. introduces

57. has been

58. haven't realized

59. has come

60. have signed

61. would retire

62. has become

63. offers

64. have been reading

65. shows

66. worked

67. will cost

68. is

69. feels

70. threatens

71. has increased

72. was just thinking

73. was doing

74. are wearing

75. has claimed

76. gives

77. has just fainted

78. had swallowed

79. has repaired

80. was writing

81. looked

82. write

83. are prepared

84. has developed

85. worked

86. see

87. would lose

88. has held

89. will go

90. have been phoning

91. have lost

92. had grown

93. will be flying

94. changed

95. wasn't

96. was

97. didn't

98. was doing

99. left

100. developed