The country diminished the _____ by reducing tax.
A. income
B. revenue
C. earning
D. expense
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Sharpen your _____ and curiosity and learn from the lessons around you.
A. envision
B. vision
C. visual
D. virtual
The United States would be mistaken to take for granted the dollar's place as theworld's _____ reserve currency.
A. dimensional
B. sovereign
C. predominant
D. domain
One of Darwin's _____ problems was to discover where this variation originated.
A. dragging
B. lagging
C. nagging
D. tagging
The dark clouds hanging over the relations between the two countries will quickly.
A. diminish
B. vanish
C. astonish
D. polish