In the past,the life is very hard.People often went out on foot,very few of them go by bike,let alone by public bus.There weren't supermarket but only small shops.The streets were very narrow,and there were only small houses along them.
But now,the life has changed a lot.The city of Beijing is big and clean.We can see greentrees and grass everywhere.There are also a lot of high buildings and wide streests instead of the small and narrow ones.A lot of people have their own cars.They also wear new clean clothes.