Tobacco and Narcotic substances. How Does Smoking Affect Health? Narcotics and Other Dangerous Substances (Тексты для перевода), страница 6

4. Выберите правильный предлог

1.  Long before all the good land can be brought (under, in, at, since, by) proper cultivation, the need for good will have increased greatly.

2.  Actually, algae has been used (on, at, for, by, to) food for centuries.

3.  The problem of creating a pleasant –tasting foods of algae can be solved by making the algae (from, in, for, into, to) a tasteless powder to be added to other foods.

4.  Another concentrated source (in, of, to, into, at) protein that could be used to feed the hungry millions is concentrated fish flour.

5.  (On, from, for, in, at) this reason, many people think that fish flour is an answer to the world’s increasing food needs.

6.  Incaparina is made ( on, of, in, at, from) cottonseed, corn, and sorghum, all inexpensive foodstuffs.

7.  Man has made great progress( in, at, from, for, by)  developing solutions to his food needs.

8.  You can be sure that as man’s need (to, from, since, for, at) new food grows, artificially created foods will become an important part of people’s diets.

9.  The problems of taste and nutritional value have been partially solved (on, at, in, with, to) a process of pasteurization.

10.  Food irradiated (on, for, in, by, under) this way retains its flavor and vitamins.

5.  Соедините слово в правой колонке в его определением слева