Question

Поставьте глагол в правильную форму . 1. In early times people (to begin) domesticating wild animals . 2. I think the farmer (to increase) the yields of crops next year. 3.The scientists from our laboratory ( to present ) interesting reports at the conference recently. 4. Last year the farmers (not to rely ) on feeds from pastures and ( to grow ) additional crops for their livestock . 5. The cow ( convert ) large quantities of different grasses into milk which ( to be ) a valuable product . 6. As our agronomist (to recommend ) we ( to spread ) manure on this field now. 7. People ( to keep ) domesticated animals either in barns or on pastures . 8. The production of dairy product constantly (to increase ) in Russia at present. 9. What animals (to use ) people as draft animals in the 18 th century ? 10. For many centures people in Africa (to breed ) camels but even now a white camel (to be ) an exotic animals . 11. Last week the farmers (to keep ) swine on pastures . 12. Poultry also ( to convert ) feed efficiently into protein and (to provide ) people with meat and eggs . 13. If any species in the food chain ( to disappear ) ,there ( to be ) a disbalance in the whole ecosystem . 14. As soon as the environment of a species or a population ( to develop ) in an unfavourable way ,it ( to cause ) an ecological crisis. 15. If ecologists ( not / to make ) soil and water analyses,they ( not / to be able ) to estimate the environmental polution.

Answer 1

Відповідь:

1. began

2. will increase

3. have presented

4. didn't rely, grew

5. converts, are

6. recommends, to spread

7. kept

8. is increasing

9. used

10. had been breeding, are

11. kept

12. converts, provides

13. disappears, are

14. develops, will cause

15. didn't make, would not be able

Answer 2

1. In early times, people began domesticating wild animals.
2. I think the farmer will increase the yields of crops next year.
3. The scientists from our laboratory presented interesting reports at the conference recently.
4. Last year the farmers did not rely on feeds from pastures and grew additional crops for their livestock.
5. The cow converts large quantities of different grasses into milk, which is a valuable product.
6. As our agronomist recommended, we are spreading manure on this field now.
7. People kept domesticated animals either in barns or on pastures.
8. The production of dairy products is constantly increasing in Russia at present.
9. What animals did people use as draft animals in the 18th century?
10. For many centuries, people in Africa have bred camels, but even now, a white camel remains an exotic animal.
11. Last week, the farmers kept swine on pastures.
12. Poultry also converts feed efficiently into protein and provides people with meat and eggs.
13. If any species in the food chain disappears, there will be a disbalance in the whole ecosystem.
14. As soon as the environment of a species or a population develops in an unfavorable way, it causes an ecological crisis.
15. If ecologists do not make soil and water analyses, they will not be able to estimate environmental pollution.