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
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单项选择题
If this kind of fish becomes ______, future generations may never taste it at all.
A．minimum
B．short
C．seldom
D．scarce
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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