Choose the right variant (a, b, c or d)
1. Even an average tornado has a power similar to of a large power station.
a) this c) one
b) that d) the same
2. I have to do some extra work now because one of my colleagues a holiday.
a) has c) is having
b) has had d) would have
3. If it a country, California would be one with more people than Canada and an economy the size of China's.
a) would be c) will be
b) has been d) were
4. So far no attempts to improve the situation.
a) must be made c) must be making
b) must have been making d) must have been made
5. The result of this study is intriguing, and surely worth in a larger piece of research.
a) to follow up c) following up
b) to be followed up d) followed up
6. The danger of radiation for human health makes us different means of protection.
a) develop c) to develop
b) to have developed d) to be developed
7. For the first time since the industrial revolution, than 10 % of American workers are now employed in manufacturing.
a) least c) as many as
b) fewer d) farther
8. It will take months for the new proof thoroughly.
a) being checked c) checked
b) to be checked d) to check
9. The conference was devoted to the subject they ... for two years.
a) had been investigating c) did investigate
b) investigated d) were investigating
10. Technological improvements are needed wind, solar and hydrogen can be more viable parts of the energy equation.
a) lest c) so that
b) for d) unless
11. The more she worked,
a) the less she achieved c) she did not achieve enough
b) she achieved not enough d) she was achieving less
12. . this theory may seem it does have some weak points.
a) No matter how convincing c) Provided it is convincing
b) In spite of convincing d) In order to convince
13. She hasn't begun working on her Ph.D. working on her master's.
a) still because she is yet c) still while she is already
b) yet as a result she is still d) yet because she is still
14. . Not only has demand been high, but is coming from places that are hard to reach.
a) the oil we have been finding c) finding the oil
b) unless we found oil d) we have been finding oil
15. He has received several scholarships .
a) not only because of his artistic but his academic ability
b) for both his academic as well as his artistic ability
c) because of his academic and artistic ability
d) as resulting of his ability in the art and the academy
16. Of serious concern in software construction are techniques that permit us to recognize .
a) if not correct a given program is
b) whether a given program is correct
c) or is a given program correct
d) isn't a given program correct
17. The students liked that professor's course because .
a) there was few if any homework
b) not a lot of homework was
c) there was little or no homework
d) of there wasn't a great amount of homework
18. Mention has already been made of the fact that scientific discoveries .
a) which cannot be wholly dealt with on a national scale
b) makes the problem far more complicated than it seems
c) proving scientists new hypotheses
d) are greatly assisted by the developments in research techniques
19. It is important that this project should be adequately financed. Then .
a) a number of other difficulties will arise
b) there is little hope that it will succeed
c) its success will be assured
d) it will be too late
20. The chairman requested that .
a) the members studied more carefully the problem
b) the problem would be studied more carefully
c) with more carefulness the problem could be studied
d) the members study the problem more carefully