2. Переведите однокоренные слова.
1. Depend, dependence, interdependence, independence, independent.
2. Necessary, necessities, necessarily, unnecessary, unnecessaries.
3. Vary, various, variety.
4. Secure, security.
5. Relative, relatively.
6. Profit, profitable, profitability, profitably, profitless, unprofitable.
7. Maintain, maintenance.
8. Communicate, communication.
9. Possible, possibility, impossible, possibly.
10. Contribute, contribution, contributor.

advertisement plays a big role in our lives. some people don't like to see it everywhere and some people don't care about it. as for me, i think that  advertisement is an inportant part of our world. to keep the economy up we have to sell goods to people but it would be inpossible to sell a lot of products without advertising it. but i believe that it should be limited. i can't stand when i am in museum or theatre or any other cultural place and there i see commercial everywhere around me. i also don't like when i watch an interesting movie and it is interrupteb by a commercial. so my opinion is that the advertisement should have a right to exist but it should be limited.