[ Vocabulary ]
Specialization of cooperative labor
A. Efficiency
B. Division of labor
C. Factors of production
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Grammar › ViewPostmen usually_________________________letters.
A. delivers
B. throws
C. deliver
D. throw
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Which is the correct spelling of the word…
A. Benefited
B. Benefitted
C. Benafited
D. Benifited
E. Beniffited
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