_________ (发生了巨大的变化) in our country since 1980

_________ (发生了巨大的变化) in our country since 1980
1 If you want to see the bridge,you should ____________________________
（乘汽车）
　　2、I am
happy that my mother has ____________________（更多的空闲时间） in the morning.
　　3、______________________（发生了巨大的变化） in our country since
1980.
　　4、___________________________（越来越多的人搬进） new houses in the past few
years.
　　5、The new airport _______________________（使用） for ten years.