[ Vocabulary ]
The effort that people devote to a task for which they are paid
A. Efficiency
B. Labor
C. Opportunity cost

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India is my country.
A. India
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The manager was assigned to ___ the construction of the new office building.
A. oversee
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Which words complete this sentence correctly?
The remarkable discovery of the Wollemi Pine in the Greater Blue Mountains [________] the area being inscribed on the World Heritage List in December 2000.
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