She may have to meet any costs ______ (incur) as the result of the dalay.
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The updated accounting standard increases the ______ (frequent) of sending financial reports for audits.
The production efficiency can be improved by closely ______ (monitor) the manufacturing staff and how they operate the machines.
The budget will certainly include increased ______ (expense) on education.
In order to ______ (cover) the truth, the journalists have disguised into customers and spoken to the drug dealers in person.