1. This farm .... neither crawler tractors nor garden tractors.. a) is using
b) does use
c) uses

2. The nature of a slice .... upon the type of a plough used.

a) is depending
b) depends
c) depend

3. Our farmers .... the seedbed at the moment.

a) prepare
b) is preparing
c) are preparing

4. They .... obtain a good yield.
a) are always obtaining
b) always obtain
c) have always been obtaining
5. He .... as a mechanic since he graduated from Institute.

a) is working
b) has been working
c) works

6. The equipment examining .... to be done properly.

a) need
b) can
c) may

7. We .... change the date of the primary tillageу because of the great soil moisture.

a) was able to
b) could
c) had to

8. This combine is rather old. .... we buy a new one?

a) Will
b) Must
c) Shall

9. It .... be kept in mind that there are many types of moldboards.

a) may
b) should
c) can

10. Our tractor driver ..... operate tractors of all types.

a) must
b) can
c) shall

11. The farm has the machines .... manure.

a) distributing
b) distributed
c) increasing

12. The machines ...... at the farm are new.

a) used
b) using
c) uses

13. We should take into consideration the factors ..... the quality of crops.

a) influencing
b) influenced
c) having influenced

14. ....... new methods they got high yields.

a) applying
b) applied
c) being applied

15. We ....... soils with blackland moldboard.
a) never plowed
b) have never plowed
c) are never plowing

108

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Ответы на вопрос:

дарууунчик

4,7(60 оценок)

suet first had packed her suitcase,then called a taxi

bob first had eaten the meal,then paied the bill

mary first had read the contract then sang it

the boys first had watched the natch then turned off the tv

peter first had borrowed some money then bought a car

удачи)

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