【正文】
g college74. of failure to fulfill its promise to reduce the unemployment rate75. it very important to ply with/follow the safety regulations76. had he tried to use the machine than it stopped working72. followed my advice/suggestion, you would not have been/put yourself in trouble 73. watched her injured son being sent into the surgery/operation room. 74. were (have been )suggested/advised not to travel to that country at the moment.75. via/with/through instead of / rather than telephone 76. Not until the deadline did he send out 82. peting with overseas/ foreign panies for market share83. does he feel secure and relaxed84. be deprived of the right to receive education/ be denied the right to receive education85. let alone / not to mention the large amount of money we have spent86. have received considerable public attention/concern in recent decades82. our munication would not have been so efficient and convenient.83. nothing is more helpful than humor/ a sense of humor84. (he) refused to make further explanation/ to further explain why85. while animal behavior depends mainly upon (或on) their instinct(s)86. should he lie to the court / is he allowed to lie to the court82. who dedicate/ devote/ contribute their whole life to poems83. otherwise, she would have replied to me last week84. have finished the chemistry experiment85. have the old couple quarreled with each other86. To a great extent ,the future prosperity of a country depends on