4、.The manager whose company I'm working in pays much attention to improving our working conditions. 状语从句1.布朗先生来我们中学之前已经在一所大学里工作二十年2.The school held the activity so thatstudents would improve their awareness of environmental protection. 3.因为乘飞机旅行更快速,越来越多的人选择搭飞机。4.因为地球是人类的唯