单项选择题

By signing the lease we made a ________ to pay a rent of $150 a week.

A．conception
B．commission
C．commitment
D．confinement
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单项选择题
The police were alerted that the escaped criminal might be in the ________.
A．vain
B．vicinity
C．court
D．jail
单项选择题
Cultural ________ indicates that human beings hand their languages down from one generation to another.
A．translation
B．transition
C．Transmission
D．transaction
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