单项练习

时态Tense

42. You should have put the milk in the ice-box, I expect it undrinkable by now.

(become)

43. When we finally bought stock in that company, the market its peak and the stock

was declining in value. (already reach)

44. Even though they side by side for 20 years, the two neighbors are not very

friendly. (live)

45. There was a knock at the door. It was the second time someone me that evening.

(interrupt)

46. It was only after some progress in the use and development of electric current

that men began to realize the importance and possibilities of magnetism. (make)

47. In this experiment, they are wakened several times during the night, and asked to report what

48. The Managing Director said that improving relations with the association could not be easy,

but that they to try. (decide)

49. He has been looking everywhere for you, and he still _____________. (be, do, have) 50. This is one of the rarest questions that ______________ at such a meeting. (raise)

51. The company _________________ a rise in salary for wages, but nothing has happened yet.

(promise)

52. After he ____________ for two hours, Mr. Smith had a drink of water. (lecture)

53. I haven’t seen Mary these past few days. I’m afraid she _________________herself for some

time. (not feel)

54. We _______________ our supper when Tom came to visit us. (just have)

55. Turn on the television or open a magazine and you ______________ advertisements showing

happy, balanced families. (often see)

56. While people may refer to television for up-to-the-minute news, it is unlikely that television

______________ the newspaper completely. (replace)

57. By the time you get to Nanjing tomorrow, I _____________ Beijing. (leave)

58. Ever since the Smiths moved to the suburbs last year, they better health. (enjoy) 59. I bought a new bike last week, but I my old bike yet, so at the moment I have two

bikes. (not sell)

60. I decided to go to the library as soon as I . (finish what I do)

61. We to start our own business, but we never had enough money. (hope) 62. We our breakfast when an old man came to the door. (just have) 63. If you smoke in a non-smoking section people . (object)

64. Ever since his paintings went on exhibit, there large crowds at the museum

every day. (be)

65. I suppose when I come back in ten years’ time all these houses down. (pull) 66. By the end of April Peter here for three weeks. (stay)

67. This tour of the generating station is very interesting, which is the first opportunity I of seeing how electricity is produced. (have)

68. I reading the novel by the time you come back next week. (finish)

69. When all the lights went out Albert a new specimen in the laboratory. (examine) 70. The plane circling over the landing field for fifteen minutes when the pilot was

told that he should use the Westside field. (be)

71. This is the finest of the books that life in the American colonies. (describe) 72. I felt extremely excited as it was the first time that I aboard at all. (ever be) 73. The conference a full week by the time it ends. (last)

74. This law the number of accidents caused by children running across the road

when they got off the bus. (intend reduce)

75. I’ll certainly work all next week except when it . (rain) 76. Hand in your papers when you the test. (finish)

77. No creature in nature has suffered so much ill treatment the crow. (like, as has, as

does, so does)

78. we to imply from your remarks that you are defending George’s behavior? (be,