下列说法正确的是( )
_______the exam, we'll say good-bye to our dear teachers, classmates as well as ourbeautiful school.
以前,人们把小轿车看作是身份的象征;而现在,人们把小轿车看作是代步的工具。出现这种变化的原因是随着生活水平提高,人们的( )