On another planet [?] away from Earth live the Altaians. Science and technology have [?] them everything. A [?] of ten scientists is [?] to produce everything they need for their [?] lives.
A thousand years ago Altaia was like Planet Earth, but now all the trees and [?] have been [?] by concrete. There are no animals, either. At the moment of the "[?] Step Forward", chemicals [?] all animal life on the planet.
Now, alone on their [?] concrete planet, the Altaians [?] [?], uninteresting, sad lives. The [?] of the scientific team is called Xaliox.
One day he [?] through his extra-[?] telescope at the Planet Earth. Earth looks so pretty and [?]. Green, [?], blue and white, although in the [?] few years some [?] of Earth have become like Altaia - full of [?]. Earth people are quite different from Altaians. Earth people are [?] and energetic, they are always moving about and doing things. They even [?] around the Earth in big metal . Yet, despite all their activities they [?] to be happy and friendly.
As he is looking at Planet Earth, Xaliox says to himself "Perhaps it would be a good [?] to bring some Earth people to Altaia. They will be able to tell us why their lives are so happy and [?]."