单项选择题

Experts ______ that the country's involvement in the conflict has cost over 1 billion dollars.

A．repair
B．locate
C．estimate
D．discharge
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单项选择题
The client ordered the widescreen television last Monday, but it did not arrive until the ______ Wednesday.
A．following
B．upcoming
C．available
D．frequent
单项选择题
Please ______ all completed application forms to the HR manager, Ms. Sally Biggs.
A．submit
B．manufacture
C．persist
D．demolish
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