Group A
- abrupt
- complex
- implicate
- inexplicable
- structural
Group B
6. applicable
7. disrupt
8. independently
9. pendulum
10. suspended
Group C
11. bankrupt
12. duplicate
13. instruction
14. pendant
15. suspense
Group D
16. complication
17. impending
18. interrupt
19. destruction
20. perplexing