It’s difficult to _____ the effects of these changes.
A. assess
B. access
C. accede
D. asset
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After defeat of the new _____, the prices can rise again.
A. competition
B. compete
C. competitive
D. competitor
They have arrived at a solution via scientific _____.
A. investigate
B. investigation
C. investigator
D. investigative
I can’t understand how could someone _____you with another!
A. mix
B. puzzle
C. mistake
D. confuse
Additional researches will _____associations between decrease of the sales and the influence of the financial crisis.
A. analyze
B. analysis
C. evaluate
D. evaluation