78. After his ________(获得) of the diploma, he volunteered to work in the Northeast of China.　

77. This meeting ____________(加快了) the pace of educational reforms.　

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

75.Every year the company e__________ the workers and then decides their monthly pay.

74. I was going along the street looking for a place to park when the accident o_____.

73.I tried to get through ,but there were too many people b　　　　　 　my way.　

72.The cell phone w_______________ only 70 grams is convenient to use..　

71.The results of this research will be a_____________ to the treatment of lung cancer.