单项选择题

______ the young postman was busy delivering mail in the small village.

A．Day and night
B．Day by day
C．Day in and day out
D．All the day
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I am ______ the amount of sugar I take in my te
A． diminishingB. reducingC. decreasingD. deduce
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Cross the road one at a time -- don' t ______ up.
A．set
B．group
C．bunch
D．hold
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