单项选择题

It is estimated that more than 50 million people in the United States play a musical __________.

A．tool
B．device
C．appliance
D．instrument
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单项选择题
She thinks it will rain this afternoon, but her father thinks __________.
A．likewise
B．anywise
C．otherwise
D．as well
单项选择题
You may use the notebook as you like, __________ you keep it clean.
A．as far as
B．so long as
C．as further as
D．so far as
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