B. Write the root word of the following words.
1. emotional
2. respectful
3. regain
4. impossible
5. glamorous
6. kindly
7. emptiness
8. maltreatment
9. irregular
10. conclusion
11. sanctify
12. faithful
13. childhood
14. blacken
15. artistry
16. illegal
17. investigator
18. differential
19. ministry
20. irresponsible​