单项选择题

The new computer virus ______, the system was restored to its normal operation.

A．having removed
B．being removed
C．had been removed
D．was removed
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单项选择题
The hostess ______ the maid ______ the table for dinner while we arrived after a three-hour drive from the town.
A．told, to make
B．was telling, to do
C．told, to lay
D．was telling, to set
单项选择题
In the north of the country, the sun always shines ______ the vast prairie land in summer.
A．brightly on
B．bright on
C．bright in
D．brightly in
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