Помогите пожалуйста, кто хорошо соображает)
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