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choose the best variant: (выберите правильный вариант ответа).

1. the research which … by the scientist at the moment is very important.
a. is conducted b. was conducted c is been conducted d. is being conducted

2….the distance we started another series of experiments.
a. having measured b. measured c. being measured d. measure

3. the report … in the next issue of the journal.
a. was published b. is published c. publish d. will be published

4. this group of engineers is responsible … modernizing the laboratory equipment.
a. at b. of c. for d. after

5. this stage was followed … a careful study of the results.
a. with b. of c. by d. at

6. there is some … that vitamins can give protection against cancer.
a. demonstration b. correlation c. prove d. evidence

7. for some time scientists remained … in the problem.
a. interesting b. interested c. were interested d. are interesting

8. the results … during our experiments were very important.
a. received b. get c. obtained d. obtain

9. last year i began researching …organic substance properties.
a. into b. in c. how d. to

10. some contributions have been made … the study of introduced plants growth.
a. for b. to c. of d. by

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