87，The university authorities did not approve theregulation,____(也没有解释为什么)
88，Jane is tired of dealing with customer complaints and wishesthat she_____(能被分配做另一项工作)
89，John rescued the drowning child_____(冒着自己生命危险)
87.and didn’t explain the reasons either
88.could be assigned to do another job
89.at the risk of his own life