Homework

I don't know who is my neighbor. I think most of people don't know their neighborhood. My grandmother told me 10 years ago, when people were passing by our house, they certainly say "Hi". These days, no one doesn't say "Hi". I think people are gradually going to be selfish. I can be selfish too. No one does not realize he or she is selfish. My neighborhood is really quiet, so there is no an accident near my neighborhood. I know it is really nice, but is it really nice???? If we know each other, we can make our place better. Also, we can talk about problems.