80. Five years after the International standards for digital TV were established ,_______(消费者)could have access to more than 200 channels in the USA.　

79. The river water is used by the local people after being　　　　　 (净化)．　

78. The meeting ____________(加快了) the pace of educational reforms.　

77. During World War II, when London was bombed, many stations f_______ as bomb shelters.　

76. In old days, society was p___________ against women.

75. At Christmas, she and her husband went travelling s________---She went to France,while her husband went to Tibet.

74. Many people don’t believe him and they are even s_________ of what he has really achieved in science.

73. Some people are a_________ to drugs so much that they sometimes rob banks of money to buy drugs.

72. The medicine is considered to be the most useful medicine in c____________ society.