56. I was very interested in ( ) she told me.

55. A new laptop costs about ( ) of a second-hand one.

54. ( ) the boss says, it is unreasonable to ask me to work overtime without pay.

53. She ( ) fifty or so when I first met her at a conference.

52. If there were no subjunctive mood, English ( ) much easier to learn.

51. What a nice day! How about the three of us ( ) a walk in the park nearby?

80. Teddy came to my ( ) with a cheque of $200 to pay my room rate, after I phoned him that my wallet had been stolen.

79. The moon, being much nearer to the Earth than the Sun, is the ( ) cause of the tides.

78. Bus services between Town Centre and Newton Housing Estate will be ( ) until them otorway is repaired.

77. In spite of the treatment, the pain in his leg grew in ( )

76. When invited to talk about his achievements he refused to blow his own ( ) and declined to speak at the meeting.