79. She is a student good at mathematics. (FIGURES)

78. The council rarely allows appeals against its decisions.
→Hardly 

77. The only thing that kept us out of prison was the way he spoke
to the local dialect.
→But for 

76. You think that fat people are allays jolly, but you are wrong.
→Contrary to

75. The Yeti has very rarely been seen at this altitude.
→There 

74. You can eat as much as you like for $5 at the new lunch-bar.

→There is

73. He was sentenced to six months in prison for his part in the
robbery.
→He received 

72. That rumour about the politician and the construction contract
is absolutely false.
→There is

71. It was Walter Raleigh who introduced potatoes and tobaccos
into England.
→The English 

70. As an antidote to their disappointment, he bought them ice-
cream. (OFFSET)