A．don’t refer to

B．haven’t referred to

C．wasn’t referring to

D．hadn’t referred to

A．wasn’t referring to

B．had referred to

C．hasn’t referred to

D．will refer to

  66. My first a ________ to make a chocolate cake failed, but I decided to try again.

66.________

  67. F________ is the second month of a year.

67.________

  68. Excuse me. May I i________ you for a moment?

68.________

  69. Euro is the currency of most E________ countries.

69.________

  70. The mosquitoes in your room have been killed, so you should be able to sleep________（舒服）.

70.________

  71. Great changes have taken place in this town in the past ________（十年）

71.________

  72. It’s ________（合理的）to suppose that prices will come down soon.  

72.________

  73. If the operation is ________（成功）, she should be walking within a few days.

73.________

  74. When I said someone was impolite, I wasn’t ________（指）to you

74.________

  75. What the farmers need most today is agricultural science and ________（技术）

75.________