I live in a nuclear.

I live in a nuclear family(a nuclear family consists of two generations ---two parents and their children). I live with my mon and dad. I think nuclear family have advantage and disadvantage. Advantage is very quiet at home， and home also clean. My father had a car, send me to school every day. Disadvantage is not have many people to share the work. For example, my mon work outside and nobody take care of me.

If many people live in my city ten years from now

 If twice as many people live in my city ten years from now there will be a lot of bad things happen. First things is if no new means of transport, street will be very crowded. there will
have too many cars in the street. Second, there will have many people，and no place to live. Third, maybe have not enough water for everyone， because many place use to live. I think my city ten years from now, it will uncomfortable than it is now.