ответить на вопросы 1) do the british like to complain? 2) what problems bother young people of your age? 3) how would you complain about them to your friends, parents, teachers? what do the british usually complain about? 4) what do russian teenagers usually complain about?

1) Yes, they do.
2) The main problems which bother young people of my age are loneliness and stress
3) I think they are prim and proper. British always complain about weather because there is always rain.
4) Russian teens usually complain about school and their parents.