5. A. Will people live
6. D. will be working
7. A. doesn't go
8. B. study
9. D. an important concern
10. C. have invented
11. A. applications
12. D. success
13. A. around
14. D. invented
15. C. performing
16. A. but
17. C. scientific
18. D. as a result
19. B. made
20. C. for
21. B. fields
22. D. won't be watching
23. C. shrugging her shoulders