6. [A]gifted [B]skilled [C]trained [D]versatile
7. [A]keep [B]maintain [C]retain [D] protect
8. [A]since [B]so [C]and [D]yet
9. [A]charge [B]price [C]cost [D]value
10. [A]accept [B]gain [C]receive [D]absorb
11. [A]Frequently [B]Incidentally [C]Deliberately [D]Eventually
12. [A]soon [B]quickly [C]immediately [D]first
13. [A]some [B]others [C]several [D]few
14. [A]might [B]should [C]would [D]will
15. [A]adopting [B]conducting [C]receiving [D]adjusting
16. [A]to [B]at [C]on [D]about
17. [A]opaque [B]secret [C]sealed [D]hidden
18. [A]tackle [B]learn [C]study [D]manipulate
19. [A]In [B]Through [C]With [D]Under
20. [A]except [B]nor [C]or [D]but