单项选择题

Shaking hands with the right hand is nothing but a ________.

A．contract
B．convenience
C．convention
D．controversy
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单项选择题
Although the main characters in the novel are so true to life, they are _______.
A．imaginary
B．imaginative
C．imaginable
D．imagist
单项选择题
Although we do not know the _______ amount of money he made, but we do know that it is large.
A．real
B．actual
C．genuine
D．true
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