单项选择题

Today books are________ to everyone because they are no longer expensive.

A．available
B．preferable
C．reliable
D．actual
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单项选择题
He was very rude to the customs officer,_________ of course made things even worse.
A．who
B．whom
C．what
D．which
单项选择题
Before the guests come, I must get the glasses______.
A．washed
B．to be washed
C．being washed
D．to wash
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