21. “Fundamental” means
A. Extra
B. Hard
C. Basic
D. Optional
22. “Fluctuation” means
A. Stability
B. Calmness
C. Variation
D. Ending
23. “Feasible” means
A. Impossible
B. Rare
C. Slow
D. Achievable
24. “Fervid” means
A. Cold
B. Dull
C. Intense
D. Slow
25. “Facet” means
A. Whole
B. Aspect
C. Result
D. Material
26. “Fanatic” means
A. Beginner
B. Critic
C. Enthusiast
D. Opponent
27. “Foster” means
A. Reduce
B. Block
C. Nurture
D. Break
28. “Flimsy” means
A. Strong
B. Heavy
C. Solid
D. Fragile
29. “Formidable” means
A. Easy
B. Small
C. Daunting
D. Soft
30. “Frenetic” means
A. Slow
B. Quiet
C. Frantic
D. Calm