单项选择题

Mary spends a large ______ of time each day on the telephone.

A．amount
B．moment
C．period
D．number
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单项选择题
The average ______ of beer and alcohol in the United States is very high.
A．absorption
B．digestion
C．exhaustion
D．consumption
单项选择题
Overweight people have ______ to avoid exercise.
A．a preference
B．a tendency
C．a feeting
D．an affectation
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