单项选择题

The old man got into the______of storing money under the bed.

A．tradition
B．habit
C．use
D．custom
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单项选择题
We usually______hello to each other when we meet.
A．say
B．speak
C．tell
D．talk
单项选择题
It has always been the______of our firm to encourage workers to take part in social activities.
A．plan
B．campaign
C．procedure
D．policy
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