1) At that time, when I'm 25, people will have a good education
2) By the time when I will be 25, the Earth will be contaminated
3) While we do not pollute the planet, our people will not have problems.
первое- While the people in our cities will not litter, they will not do harm the planet.
второе- While the people in our cities, they have to worry about the cleanliness of the city and the planet.
Until very dirty should not walk, so we will take care of the planet and the city to monitor the purity
Я думаю,что,нужно так)
Pinocchio - the protagonist of the fairy tale A. Tolstoy “The Golden Key, or the Adventures of Pinocchio” (. A long-nosed wooden boy cut from logs by Father Carlo. "A brainless, gullible little fool with short thoughts", but he is decisive, curious, loves adventure and has altruism. His main attribute is the golden key, and the attribute of his clothes is a cap before birth, that is, being floor Enom, he begins to bring confusion into the lives of others, showing his impatient, curious, restless temper. In the way of life Buratino had many troubles because of his character, but he still won the hearts of young readers and viewers
еслиб можно скопировать я бы перевела без проблем