单项选择题

The company now regrets not plowing more of last year's ______ into research and development.

A．surgery
B．surge
C．surface
D．surplus
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If you do not ______ your account with Telstra by June 1, your phone service will be cut.
A．occupy
B．refer
C．settle
D．export
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The new solar panels will be ______ in May to help reduce our electricity costs.
A．given out
B．put down
C．set up
D．taken to
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