Эти слова надо поставить в сравнительную и превосходную форму

The nature and the person are closely connected. And if the nature can exist without person, then the person without it can't. Therefore it is so important to live in harmony with the nature.
But, unfortunately, people try to subordinate to themselves the nature, to become her owner, but so it is impossible. The nature needs to be protected, it is our house. Necessary for life the nature gives all to us. If was considered earlier, the natural riches which aren't settled that they in large quantities, then now it becomes clear what is in limited quantity much. The person can't use gifts of the nature constantly as they can disappear soon. A task of the person to preserve the nature and to increase her riches. It is necessary to approach the matter as we are obliged to leave behind to the descendants the rich, beautiful, and pure planet responsibly.

1. He (studied) better than his father (had done). 2. They (spent) their vacation last year at the same village where they (had lived) many years before. 3. When we ( came) she had already ( sent) the children away and (was free) to speak to us. 4. Yesterday I (bought) a new watch as I (had lost) my old one. 5. He (took) the boy to the door by which he himself (had entered) the room. 6. He ( opened) his eyes, then ( looked) around and (thoght) for some time, trying to remember what (had happened) to him. 7. After they (had travelled) in the Caucasus they (decided) to make a sea voyage. 8. After they (had gone) at last I (went) to bed. 9. He (ate) all the cakes after we (had told) him not to do it. 10. The day after the party he ( asked) why we (had left) so early.