单项选择题

In previous times, when fresh meat was in short______, pigeons were kept by many households as a source of food.

A．store
B．provision
C．reserve
D．supply
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单项选择题
It is important that the hotel receptionist______ that guests are registered correctly.
A．has made sure
B．made sure
C．must make sure
D．make sure
单项选择题
______ in an atmosphere of simple living was what her parents wished for.
A．The girl was educated
B．The girl educated
C．The girl's being educated
D．The girl to be educated
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