82．Although the federal government has introduced some new laws on this subject it is the state governments __________________________________. (首先对控制污染负责) 83．These areas rely on agriculture almost entirely, ____________________________________. (只有很少量的矿产资源和最低程度的工业发展) 84．He walked away immediately, _______________________________________.(甚至连声抱歉都没有说) 85．A stable environment will bring ___________________________________. (和更好的发展机遇) 86．The police _________________________________________. (毫无根据地把受害者的死亡归于自杀)
82．which are primarily responsible for pollution control 83．having few mineral minimum of industrial development 84．without so much as saying sorry 85．better investment and development opportunities 86．ascribed groundlessly the victim’s death to suicide
和更好的发展机遇)
minimum of industrial development
